Tag: programming languages

Questions Related to programming languages

Which is false about garbage collection in java
technology programming languages

  1. the heap space occupied by an un-referenced object can be recycled and made available for subsequent new objects

  2. When the total memory allocated to a Java program exceeds some threshold the garbage coollector is invoked

  3. the program does not suspend during garbage collection

  4. garbage collection requires extra memory

Show answer
Correct Option: C

document.getElementById("trial").innerHTML() is a valid statement
technology programming languages

  1. True

  2. False

Show answer
Correct Option: B

window.location.href="www.google.com". The given statement when executed would result in one of the following:

technology programming languages

  1. It will give an error

  2. It will execute and nothing will happen

  3. It will execute and www.google.com is going to open

  4. None of The above

Show answer
Correct Option: C

onUnload event of Javascript is fired in which of the following conditions

technology programming languages

  1. When browser is closed

  2. When the page reloads as well.

  3. Only when you navigate out of the page.

  4. All Of the Above

Show answer
Correct Option: D

The following piece of javascript code is going to work fine. function tryVariableArguments() { var intCnt = 0; for (intCnt = 0; intCnt < tryVariableArguments.arguments.length; intCnt++) { alert(tryVariableArguments.arguments[intCnt]); } } Trial Page tryVariableArguments('1','2','3'); tryVariableArguments('1','2'); tryVariableArguments();

technology programming languages

  1. True

  2. False

Show answer
Correct Option: B

Javascript does not distinguish between name of a function and a variable

technology programming languages

  1. True

  2. False

Show answer
Correct Option: B

innerHTML, innerText, outerHTML and outerText. What are these of Element object
technology programming languages

  1. Methods

  2. Properties

  3. Objects

  4. None of The above

Show answer
Correct Option: B

All the HTML objects like Form, Select, Textarea and others are implicitly an instance of Element as well
technology programming languages

  1. True

  2. False

Show answer
Correct Option: B

It is possible to add custom methods and properties in pre-existing objects like String, Math and others
technology programming languages

  1. True

  2. False

Show answer
Correct Option: B

One can add custom method and properties to objects in javascript without using prototype as well.
technology programming languages

  1. True

  2. False

Show answer
Correct Option: B