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Javascript Questions Set 56:

Quiz Mode

Which object supports Filesystem API?

DOM

Element

Window

File

Solution:

Deduce the output of the following code:

<script>

var x=24;

{

let x=4;

}

document.write(x);

</script>

Solution:

Which React hook serves the same purpose as componentDidUpdate?

none of these

useState

serState

useEffect

Solution:

__________________ provides stability to the application and reduces run-time errors.

Hooks

Redux

Flux

none of these

Solution:

Which function is used to convert a JavaScript object to a JSON string?

JSON.parse

JSON.stringify

Both 1 and 2

None of these

Solution:

How can we make methods available on all objects?

Object.prototype

Object.add(methods)

Object.methods(add)

Object.add.methods(…)

Solution:

What are the features of an HTTP request?

Optional request body

URL being requested

Optional set of request headers

All of the above

Solution:

Which method is used to strip whitespace (space, tab, newline characters) from the beginning and end of a string?

$.space()

$.remove()

$.strip()

$.trim()

Solution:

What is the syntax to begin a HTTP GET request?

request.open(GET,”data.csv”);

request.open(“GET”,”data.csv”);

request.open(“GET”);

request.open(“GET”,”data”);

Solution:

What is the purpose of the `navigation` property in the `window.performance` object?

To which page the user navigated

How the user navigated

Information about the page

Information of the cursor

Javascript Questions Set 56:

Which object supports Filesystem API?

Solution:

Deduce the output of the following code:

<script>

var x=24;

{

let x=4;

}

document.write(x);

</script>

Solution:

Which React hook serves the same purpose as componentDidUpdate?

Solution:

__________________ provides stability to the application and reduces run-time errors.

Solution:

Which function is used to convert a JavaScript object to a JSON string?

Solution:

How can we make methods available on all objects?

Solution:

What are the features of an HTTP request?

Solution:

Which method is used to strip whitespace (space, tab, newline characters) from the beginning and end of a string?

Solution:

What is the syntax to begin a HTTP GET request?

Solution:

What is the purpose of the `navigation` property in the `window.performance` object?

Solution:

Related Question Sets:

Related Topics:

Javascript Questions Set 56:

Which object supports Filesystem API?

Solution:

Deduce the output of the following code: <script> var x=24; { let x=4; } document.write(x); </script>

Solution:

Which React hook serves the same purpose as componentDidUpdate?

Solution:

__________________ provides stability to the application and reduces run-time errors.

Solution:

Which function is used to convert a JavaScript object to a JSON string?

Solution:

How can we make methods available on all objects?

Solution:

What are the features of an HTTP request?

Solution:

Which method is used to strip whitespace (space, tab, newline characters) from the beginning and end of a string?

Solution:

What is the syntax to begin a HTTP GET request?

Solution:

What is the purpose of the navigation property in the window.performance object?

Solution:

Related Question Sets:

Related Topics:

Deduce the output of the following code:

<script>

var x=24;

{

let x=4;

}

document.write(x);

</script>

What is the purpose of the `navigation` property in the `window.performance` object?