1500+ Javascript Questions - Set 127 [With Solutions]

Javascript Questions Set 127:

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Javascript Questions

Set 127/137

The Google Closure Compiler can be run in ____ modes.

Which parameter can be passed to the keymap after installation?

Key Stroke

Key Name

Key property

Keydown event's object

When will the finally block be called?

When there is no exception

When the catch does not match

When there is exception

After try-catch exception

What does the constant TYPE_BACK_FORWARD indicate?

Navigation via user request

Navigation via browser history

Navigation via URL

Navigation via load operation

Do functions in JavaScript necessarily return a value?

It is mandatory

Not necessary

Few functions return values by default

some functions do not return any value

Which of the following syntax is correct for selecting an element by tag name?

document.getElementById();

document.getElementBytagName();

None of the above

document.getElementsByTagName();

What is the output of the following code?

`<p id="demo"></p> var str1 = "good"; var str2 = "day"; document.getElementById("demo").innerHTML = str1 + str2;`

goodday

good day

error

undefined

When do uncaught exceptions generate events?

When handlers are registered

When handlers are deregistered

When handler functions are called

When handlers do not have a matching catch clause

How can we fetch the value entered in the username text field from the following code?

`<body>`
`<form name="register">`
`Enter username <input value="John" id="name" name="username">`
`</form>`
`</body>`

document.register.name.value

None of the above

document.getElementByName("name").value

document.getElementById("name").value

Which of the following is not a feature of jQuery?

Efficient query method for finding the set of document elements

Expressive syntax for referring to elements in the document

Useful set of methods for manipulating selected elements

Powerful functional programming techniques is not used for operating on sets of elements as a group

Quiz Mode

Qn. Sets

Javascript Questions Set 127:

Javascript Questions

The Google Closure Compiler can be run in ____ modes.

Reveal Answer

Reveal Answer

Which parameter can be passed to the keymap after installation?

Reveal Answer

Reveal Answer

When will the finally block be called?

Reveal Answer

Reveal Answer

What does the constant TYPE_BACK_FORWARD indicate?

Reveal Answer

Reveal Answer

Do functions in JavaScript necessarily return a value?

Reveal Answer

Reveal Answer

Which of the following syntax is correct for selecting an element by tag name?

Reveal Answer

Reveal Answer

What is the output of the following code? <p id="demo"></p> var str1 = "good"; var str2 = "day"; document.getElementById("demo").innerHTML = str1 + str2;

Reveal Answer

Reveal Answer

When do uncaught exceptions generate events?

Reveal Answer

Reveal Answer

How can we fetch the value entered in the username text field from the following code? <body> <form name="register"> Enter username <input value="John" id="name" name="username"> </form> </body>

Reveal Answer

Reveal Answer

Which of the following is not a feature of jQuery?

Reveal Answer

Reveal Answer

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What is the output of the following code?

`<p id="demo"></p> var str1 = "good"; var str2 = "day"; document.getElementById("demo").innerHTML = str1 + str2;`

How can we fetch the value entered in the username text field from the following code?

`<body>`
`<form name="register">`
`Enter username <input value="John" id="name" name="username">`
`</form>`
`</body>`