[SCENARIO-BASED ] Grunt Interview Questions and Answers

Last updated on 17th Nov 2021, Blog, Interview Questions

These Grunt Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of Grunt . As per my experience good interviewers hardly plan to ask any particular question during your interview, normally questions start with some basic concept of the subject and later they continue based on further discussion and what you answer.we are going to cover top 100 Grunt Interview questions along with their detailed answers. We will be covering Grunt scenario based interview questions, Grunt interview questions for freshers as well as Grunt interview questions and answers for experienced.

1. What is Grunt?

Ans:

JavaScript task runner, which can automate tasks like minification, compilation, unit testing, checking js errors. Once configured, one doesn’t have to worry about these tasks.

2. Why use Grunt?

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has become very popular and has tons of plugins to choose from. These plugins are great assets for any app to automate various things with minimum effort.

3. How do you install Grunt?

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Grunt and Grunt plugins are installed and managed via npm, the Node.js package manager. To install grunt, first ensure the npm is installed properly.

4. What does ~ (tilde) sign means in package.json?

Ans:

In the simplest terms, the tilde matches the most recent minor version (the middle number). ~1.2.3 will match all 1.2.x versions but will miss 1.3.0. The caret, on the other hand, is more relaxed. It will update you to the most recent major version (the first number). ^1.2.3 will match any 1.x.x release including 1.3.0, but will hold off on 2.0.0. You can also define the exact version number that you wish to use like “1.3.5” or to always use latest version, simply use latest or *.

5. What are Grunt modules/plugins?

Ans:

Grunt modules are distributed through Node’s NPM directory. Normally, they are prefixed with grunt- and official grunt plugins are prefixed with grunt-contrib. Example: grunt-contrib-uglify. You can get a list of all grunt plugins here.

6. What is the difference between –save and –save-dev?

Ans:

–save and	–save-dev
DevDependencies are for the development-related scripts, e.g. unit testing, packaging scripts, documentation generation, etc.	Dependencies are required for production use, and assumed required for dev as well. As for example, you can include some plugin which you require during development like (for debugging or unit testing)

7. How do you install a Grunt plugin?

Ans:

• Install grunt-init with npm install -g grunt-init.
• Run grunt-init gruntplugin in an empty directory.
• Run npm install to prepare the development environment.
• Author your plugin.
• Run npm publish to publish the Grunt plugin to npm!

8. What are Grunt modules/plugins?

Ans:

Grunt modules are distributed through Node’s NPM directory. Normally, they are prefixed with grunt- and official grunt plugins are prefixed with grunt-contrib. Example: grunt-contrib-uglify. You can get list of all grunt plugins

9. How do you uninstall Grunt?

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10. EXplain grunt angular architecture graph?

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11. How popular is Grunt right now? Do you have any ideas?

Ans:

Well, Grunt is a managing tool that is even used in large-scale corporations in the present scenario. It has also been recognized as one of the best tools in its class by a lot of experts that are responsible for testing. There are other factors such as reliability that have contributed to its success. When it comes to accuracy, Grunt can simply be trusted for any kind of project without worrying about anything.

12. What are the examples of tasks in grunt?

Ans:

Given the specified configuration, this example multi task would log foo: 1,2,3 if Grunt was run via grunt log:foo , or it would log bar: hello world if Grunt was run via grunt log:bar . If Grunt was run as a grunt log however, it would log foo: 1,2,3 then bar: hello world then baz: false . grunt.

13. What are the examples of tasks in grunt?

Ans:

Given the specified configuration, this example multi task would log foo: 1,2,3 if Grunt was run via grunt log:foo , or it would log bar: hello world if Grunt was run via grunt log:bar .

14.What is the grunt process?

Ans:

Grunt is a JavaScript task runner, a tool used to automatically perform frequent tasks such as minification, compilation, unit testing, and linting. It uses a command-line interface to run custom tasks defined in a file (known as a Gruntfile). Grunt was created by Ben Alman and is written in Node. js.

15. Which file holds the metadata for the grunt plugin?

Ans:

Package. json: This file is used by npm to store metadata for projects published as npm modules. So basically, there will be a list of all Grunt plugins, along with grunt which your project is using.

16.Which command is used to group all the tasks under one roof so that it makes things easy for the developers?

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RegisterTask(taskName, [description, ] taskList) we can group all the tasks under one roof.

17. How do I pass a parameter to a grunt task?

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Another way to share a parameter across multiple tasks would be to use grunt. option . In this example, running grunt deploy –target=staging on the command line would cause grunt. option(‘target’) to return “staging”.

18. Can you override default settings of a plugin? If yes, then how?

Ans:

Yes, we can override. Inside a task configuration, an options property may be specified to override built-in defaults. In addition, each target may have an options property which is specific to that target.

19. What is npm and Grunt?

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npm is the command-line interface to the npm ecosystem. … Grunt can be classified as a tool in the “JS Build Tools / JS Task Runners” category, while npm is grouped under “Front End Package Manager”.

20. Shoe the grunt architecture mission

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21. What is gulp and Grunt?

Ans:

gulp and Grunt are task runners. They are different approaches to the same problem. Grunt uses a configuration based approach, while gulp uses streams from node to achieve results. You use them to define how and which tasks to execute (copying files, adding banners, replacing text, style checking, etc…).

22. What is a task in Grunt?

Ans:

Tasks are grunt’s bread and butter. Every time Grunt is run, you specify one or more tasks to run, which tells Grunt what you’d like it to do. Target’s can also have their own option parameters which will override the settings of options defined for the task

23. What does grunt clean do?

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Grunt will clean up your build with the grunt-contrib-clean to make sure that no artifacts from previous builds are hanging around.

24.What is the configuration of the grunt plugin?

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config. Access project-specific configuration data defined in the Gruntfile . Note that any method marked with a ☃ (unicode snowman) is also available directly on the grunt object, and any method marked with a ☆ (white star) is also available inside tasks on the this object.

25.How do I set up a grunt?

Ans:

grunt. initConfig({ copy: { production: { files: [{ expand: true, cwd: ‘dev/’, src: [‘*’], dest: ‘dist/’, rename: function (dest, src) { // The `dest` and `src` values can be passed into the function return dest + src. replace(‘beta’,”); // The `src` is being renamed; the `dest` remains the same } }] } } });

26. How do I run a grunt command?

Ans:

Run sudo npm install -g grunt-cli (Windows users should omit “sudo “, and may need to run the command-line with elevated privileges). The grunt command-line interface comes with a series of options. Use grunt -h from your terminal to show these options.

27. How do you set up/configure Grunt?

Ans:

Package.json	Gruntfile
This file is used by npm to store metadata for projects published as npm modules. So basically, there will be a list of all Grunt plugins, along with grunt which your project is using.	This file is named Gruntfile.js and is used to configure or define tasks and load Grunt plugins.

28. How do I install global grunt?

Ans:

• Make sure you have set up your package.json or setup a new one: npm init.
• Install Grunt CLI as global: npm install -g grunt-cli.
• Install Grunt in your local project: npm install grunt –save-dev.
• Install any Grunt Module you may need in your build process.

29. What Is –shop-dev Option While Installing The Grunt?

Ans:

As noted in the previous solution, that “package deal.Json” file holds the metadata for grunt plugins. So while grunt is set up using the use of –save-dev alternative, the metadata is introduced to package.Json. So you don’t have to upload it manually. And this is how your package deal.Json will seem like,

• “call”: “my-venture-name”,
• “model”: “zero.1.Zero”,
• “devDependencies”:
• “grunt”: “~zero.Four.5”,
• “grunt-contrib-jshint”: “~0.10.Zero”,
• “grunt-contrib-nodeunit”: “~zero.Four.1”,
• “grunt-contrib-uglify”: “~0.Five.0”

30. What is effective project architecture with angular grunt ?

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31. What is grunt deploy?

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The Grunt option API is for sharing parameters across multiple tasks and accessing parameters set on the command line. An example would be a flag to target whether your build is for development or staging. On the command line: grunt deploy –target=staging would cause grunt. option(‘target’) to return “staging” .

32. What does grunt work mean?

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Grunt work is an expression used to describe thankless and menial work. Grunt work can also refer to jobs that either lack glamour and prestige or are boring and repetitive.

33. What does it mean to be grunted?

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It is of a person) to make a short, low sound instead of speaking, usually because of anger or pain: He hauled himself over the wall, grunting with the effort. [ + speech ] “Too tired,” he grunted and sat down.

34. How do I stop my watch from grunting?

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If it’s a task that you are currently running you can stop it with ctrl + c. If it’s a task that is running in background you can find his process id (pid) with ps aux | grep grunt and then kill it with kill {pid}

35. Is grunt installed?

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Grunt and Grunt plugins are installed and managed via npm, the Node. js package manager. Grunt 0.4.

36. What is a grunt shell?

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Grunt shell is a shell command. The Grunts shell of Apache pig is mainly used to write pig Latin scripts. Pig script can be executed with grunt shell which is native shell provided by Apache pig to execute pig queries. We can invoke shell commands using sh and fs.

37. What is the meaning of grunting?

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(of a person) to make a short, low sound instead of speaking, usually because of anger or pain: He hauled himself over the wall, grunting with the effort. [ + speech ] “Too tired,” he grunted and sat down.

38. Where Do You Define Configuration Of Grunt Plugin?

Ans:

Grunt plugin configuration needs to be described within grunt.InitConfig technique. See beneath pattern code.

• Module.Exports = function(grunt)
• grunt.InitConfig(
• pkg: grunt.Record.ReadJSON(‘package deal.Json’),
• concat:
• // concat undertaking configuration goes here.
• ,
• uglify:
• // uglify mission configuration goes right here.
• );
• ;

39. What is difference between Webpack and Gulp?

Ans:

The basic difference is Gulp is a task runner, whereas Webpack is a bundler. Hence, Webpack can run the majority of functions by itself without the help of any other applications. In the bundle, there are provisions for running tasks, minification and source maps in the system.

40.What is grunt mission scenario

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41. How do you use Grunt?

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Let’s first breakdown a typical workflow to get a big picture:

• Install Node. js and Grunt.
• Create a package. json and list dependencies (Grunt and plugins).
• Install NPM modules.
• Create Gruntfile. js .
• Configure tasks you need to run.
• Run those tasks in the command line while you work.

42. What is Grunt or Gulp?

Ans:

gulp and Grunt are task runners. They are different approaches to the same problem. Grunt uses a configuration based approach, while gulp uses streams from node to achieve results. You use them to define how and which tasks to execute (copying files, adding banners, replacing text, style checking, etc…).

43. Is Grunt still used?

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The Grunt community is still going strong and both tools look like they’re going to be around for a while yet. I should mention that another up and coming alternative to task runners like Grunt and Gulp is simply using npm scripts with command-line tools.

44. What is a grunt in the military?

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A colloquialism for infantrymen in the Army and Marine Corps, grunts are the military’s door kickers and trigger pullers, in short, they’re the pointy end of the spear. Related: Here’s The Grossest, Most POG Thing I’ve Ever Done » By contrast, the term POG — person other than grunt — refers to non-infantry personnel.

45. What is grunt used for?

Ans:

Grunt is a JavaScript task runner, a tool used to automatically perform frequent tasks such as minification, compilation, unit testing, and linting. It uses a command-line interface to run custom tasks defined in a file (known as a Gruntfile).

46. What Is A Task In Grunt?

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Tasks are grunt’s bread and butter. Every time Grunt is run, you specify one or extra responsibilities to run, which tells Grunt what you’d love it to do. See under code.

• Grunt.InitConfig(
• concat:
• development:
• // concat challenge “development” target alternatives and documents cross right here.
• ,
• production:
• // concat undertaking “manufacturing” target alternatives and documents passed here.
• ,
• ,
• uglify:
• improvement:
• // uglify mission “improvement” goal alternatives and documents move here.
• ,
• ,
• );

47. What is a grunting baby?

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Grunting is a normal sound for your baby to make during sleep, along with gurgles, squeaks, and snores. Most of these sounds are completely normal and do not indicate any health or breathing problems. To lower the risk of any breathing issues during sleep make sure: Your baby’s clothes are loose, but not too loose.

48. What does grunt watch do?

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Grunt can watch your project files for changes. This means that you can be coding along on your big website project and Grunt will automatically process your Sass files every time you make a change and save these files.

49. What is a grunt sound?

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A grunt is a short, deep sound. It’s an animal-like sound that people make when they’re inarticulate, angry, sullen, or lazy — or sometimes if they’re hurt or afraid. Pigs and other animals grunt too, no matter what their moods may be. The Old English root word, grunnettan, most likely came from the sound of a grunt.

50. Explain generate modules dependencies graph

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51. What do you mean by Unit Testing in JavaScript? Does Grunt have any application with it?

Ans:

A project is built in many sections and in fact by different teams. The outcome of every team is considered as a unit. The unit can also be a part of any project based on computer language. Each unit is tested before it is integrated with the final project. In Java, there is a separate approach for this that can simply be considered. Grunt plays an important role by checking each unit one after one when it is used. Thus, the outcomes are always superior.

52. What is the role of the Node.Js package manager with the implementation of Grunt?

Ans:

A grunt is a popular approach. Before using it, obviously, it needs to be installed just like any other application. The Node.js package manager along with an npm is responsible for the proper installation of Grunt, as well as Grunt plug-in. The following command is helpful in this matter. npm install grunt –save-dev

53. Which Are The Most Used Grunt Plugins?

Ans:

Run predefined responsibilities each time watched record styles are added, modified or deleted.

• Jshint: Validate documents with JSHint
• uglify: Minify documents with UglifyJS
• concat: Concatenate documents.
• Cssmin: Minify CSS
• less: Compile LESS files to CSS.

54. What exactly do you know about the configuration of Grunt?

Ans:

Grunt can be installed through Node.Js and after the installation is complete, users need to perform a basic step for its final configuration and i.e. adding two different files in it. These are:

1. Gruntfile.js

2. Package.json

55. Explain the role of –save-dev the option. Where is it used?

Ans:

This option is used while installing the Grunt. When this option is enabled during the installation, it automatically adds the metadata to the package.json. It is also possible to add it manually for getting desirable results or in case you only need to use a part of the metadata for the final outcome. This is actually a common approach while handling small-scale projects.

56. Is it possible to run the multiple tasks together in Grunt?

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Yes, this can be done. Generally, developers can save a lot of time with the help of this approach.

57. On Node.js, where exactly can you find the Grunt?

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It is basically written on the top of the Node.Js

58. Mention a few stages where you will use the Grunt?

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• Concatenating the given files
• Test running
• Running JShint
• Script minimization

59. If you see a tilde sign in package.json, what does it actually mean?

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It basically represents that there is a need to update the package or the application. The same can be done after its appearance. Basically, it is an indicator to let the user know that there is a new version available now and the existing one can simply be updated to the latest package.

60.What is grunt architecture?

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61. What is the other name of the plugins in the Grunt?

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They are also known as Grunt modules.

62. Explain the distribution of plug-ins in the Grunt?

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Well, they are distributed with the help of the NPM directory. Most of the time they are prefixed with the grunt however, it is possible to use them separately or for another purpose very simply. Users need not worry about anything. There is not always a need to call the entire directory in case only one plug-in is required. Also, installing the Grunt doesn’t always mean you need to install all the plug-ins at the same time. They can be installed later when the need for the same is felt.

63.Can you write a basic command for the installation of the Grunt Plugin? Can it also be installed without writing a code?

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npm install –save-dev

64. How To Install And Use Grunt.Js?

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The multiple Steps entails to put in and use Grunt.Js:Install Node.Js and Grunt.

• Create package deal.Json and list dependencies (Grunt and plugins).
• Install NPM modules.
• Create Gruntfile.Js.
• Configure obligations you need to run.
• Run the ones duties inside the command line at the same time as you work.
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65. In Grunt, what if you need a recent version of a plug-in and not the latest one. What can be done about this?

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Well, if the installation of the plug-in is considered by default, it always installs the latest version available. However, the fact that there can be a need for the previous version anytime cannot be denied. To install the same, a manual procedure can be adopted. This can be done by mentioning the same in the command and the installation will be after that.

66. What is the command that you need to execute removing the Grunt?

Ans:

npm uninstall grunt It must be noted that if you are using the Grunt for a long time, there is always a need for you to remove some files manually from the memory after the installation of the Grunt. Not all the files are necessary to be removed when you uninstall the Grunt from the system.

67. What exactly do you know about Grunt-cli? Explain its significance?

Ans:

It is basically nothing but a command-line interface that is considered in the Grunt for running the commands. It can also be defined as a tool that is used for accessing the Grunt from the command line. There is no strict upper limit on the location. It can be accessed from any location simply.

68. Is it possible to run two different versions of Grunt on the system at the same time?

Ans:

Yes, it’s possible. There are actually two components available that can be considered for this task. The legacy version or component is a popular one that is used when modifications are required in the old projects. The Grunt-cli is helpful in making it possible to run two different versions at the same time.

69. Mention the procedure of how Gruntfile.js can make use of package.json

Ans:

First, the task configuration needs to be specified simply in the grunt file. Next is to enable the grunt to read the information from the package and save it. It simply enables the Grunt to use the attributes from the package.json file.

70. Explain the stack overflow?

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71. In the Grunt final output, is it possible to assign any name to the file or it needs to be chosen from default?

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It can be assigned any name provided no other file with a similar name already exists.

72. It is possible for the users or Grunt to override the default settings of the plug-in they install. How can this be done??

Ans:

Yes, it is possible to do this simply. For this, a user can simply specify the options property. As every target has an options property, the task can simply be accomplished in no time.

73. What is the significance of a task in Grunt? Name any two tasks that you can define?

Ans:

Tasks are very closely associated with the Grunt. They can be considered as an integral part of this approach. The fact is whenever you run a Grunt, there is a need for you to specify the task which makes the grunt familiar with the task that you want to perform. It is possible simply to specify more than one task. Examples of tasks are:

• Uglify
• Concat

74. Is it possible for users to load the plug-in of grunt in the Gruntfile.js?

Ans:

grunt.loadNpmTasks(‘grunt-contrib-uglify’); You need to make sure before executing this command that the

75. Can you state the difference between the two popular options in Grunt and i.e. –save and –save-dev?

Ans:

There are two dependencies sections in Grunt and they are used for adding packages and for adding the section. Both these actions are performed by these options. If these options are not used, the data will not be saved at its default positions and needs to be uploaded again and again which consumes a lot of time.

76. What are grunt tools?

Ans:

• jshint
• Concat
• Less
• Uglify
• watc

77. Why Use a Task Runner?

Ans:

A task runner can do most of your work with zero effort. All task runners have the following properties –

1. Consistency

2. Effectiveness

3. Efficiency

4. Repeatability

5. and so on

78. What Are the Advantages?

Ans:

Some of the Advantages of using Gruntjs –

1. Access too many predefined plugins that can be used to work with JavaScript tasks and on static content.

2. All task runners have the following properties: consistency, effectiveness, efficiency, repeatability, etc.

3. Allows users to customize tasks using predefined plugins

4. Prefers the configuration approach to coding

5. Allows users to add their own plugins and publish them to npm.

79.What Are Grunt modules/plugins?

Ans:

Grunt modules are distributed through Node’s NPM directory. Normally, they are prefixed with grunt- and official grunt plugins are prefixed with grunt-contrib.

80. Explain speciation graphs with three graphs in grunt?

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81. Is it possible to check JS errors with the help of Grunt?

Ans:

Yes, it can simply be done. Most of the time Grunt performs this task automatically and without the interference of the user. However, it is possible to customize the results by applying various filters in case the need for the same is felt. The chance of occurrence of errors after Grunt is considered as very less.

82. What exactly do you mean by the term “Minification” in JavaScript? What is its significance?

Ans:

Well, the fact is coding is the basis of any project based on computer languages. While writing the codes, there is a need to repeat the tasks frequently such as calling a function again and again. Grunt cut down this issue simply by making this easier and time-saving. This is exactly what is considered minification. This approach basically enables developers to save their valuable time and organizations can simply save a large sum of money on large-scale projects. This is exactly why it is considered relevant.

83. What is the prime motive of using this approach according to you and it can be beneficial in the long run?

Ans:

Grunt has got a lot of favorable results after its introduction. Its prime motive is to automate various important tasks. Programmers and developers can always make sure of simple compilation as well as testing of the tasks that are time-consuming and often have errors in them.

84. Does Grunt automate tasks that programmers perform?

Ans:

Yes, Grunt is capable of automating so many tasks that assure outcomes free from any form of bugs that is the prime requirement in the IT sector presently. Organizations have to spend a very large sum of money on testing the projects. Grunt always makes sure that the same can be reduced up to a possible extent.

85. How popular is Grunt right now? Do you have any ideas?

Ans:

Well, Grunt is a managing tool that is even used in large-scale corporations in the present scenario. It has also been recognized as one of the best tools in its class by a lot of experts that are responsible for testing. There are other factors such as reliability that have contributed to its success. When it comes to accuracy, Grunt can simply be trusted for any kind of project without worrying about anything.

86. Can You Override Default Settings Of A Plugin? If Yes, Then How?

Ans:

Yes, we are able to override. Inside a task configuration, an options property may be special to override built-in defaults. In addition, each target may additionally have an alternative asset which is unique to that focus on.

• Module.Exports = characteristic(grunt)
• grunt.InitConfig(
• pkg: grunt.Report.ReadJSON(‘bundle.Json’),
• concat:
• options:
• separator: ‘;’
• );
• ;

87.What are the factors that you should pay attention to when it comes to using Grunt?

Ans:

Well, the very first thing is the latest version of the tool. When it comes to getting error-free results, it is necessary that programmers pay attention to the version of the tool. Having the latest version of Java or grunt eliminates all the probabilities of error and simply makes sure of best-written code.

88. Where exactly is Grunt used in JavaScript?

Ans:

Grunt is basically a helping tool that aims to cut down the code. Basically, it is used when there is a need to call functional or similar tasks again and again. The code can be made extremely simple and the best part is programmers can easily keep up the pace all the time irrespective of the tasks they perform. Because JavaScript is an approach that can be considered for a lot of applications, users need not worry about anything.

89. Why use Grunt?

Ans:

Grunt has become very popular and has tons of plugins to choose from. These plugins are great assets for any app to automate various things with minimum efforts

90. Show the grunt master class

Ans:

91. Is a grunt a Marine?

Ans:

POGs and Grunts – Though every Marine is a trained rifleman, infantry Marines (03XX MOS) lovingly call their non-infantry brothers and sisters POGs (pronounced “pogue,”) which is an acronym that stands for Personnel Other than Grunts. POGs call infantrymen Grunts, of course.0

92. What causes grunting?

Ans:

A grunting sound can be heard each time the person exhales. This grunting is the body’s way of trying to keep air in the lungs so they will stay open. Nose flaring. The openings of the nose spreading open while breathing may mean that a person is having to work harder to breathe.

93. What is Gulp in node JS?

Ans:

Gulp is a task runner that uses Node. js as a platform. It purely uses the JavaScript code and helps to run front-end tasks and large-scale web applications. Gulp builds system automated tasks like CSS and HTML minification, concatenating library files, and compiling the SASS files.

94. What is gulp used for?

Ans:

Gulp is a cross-platform, streaming task runner that lets developers automate many development tasks. At a high level, gulp reads files as streams and pipes the streams to different tasks. These tasks are code-based and use plugins. The tasks modify the files, building source files into production files.

95. How Does Gruntfile.Js Uses Package.Json?

Ans:

Task configuration is laid out in your Gruntfile thru the grunt.InitConfig method. Inside of grunt.InitConfig(), we read the statistics from package deal.Json and stored it in pkg belongings. With this, we can use the attributes from our bundle.Json report. We can name the name of our project the use of pkg.Call and the version with pkg.Model.

• Module.Exports = function(grunt)
• grunt.InitConfig(
• pkg: grunt.File.ReadJSON(‘package deal.Json’)
• );
• ;

96. Explain the push notification and real time notification

Ans: