Tag: web technology

Questions Related to web technology

In hibernate mapping file, The method is used to generate

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  1. the Object for accessing the database

  2. the foreign key for the new record

  3. the primary key for the new record

  4. the Composite key for the new record

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Correct Option: A

Which function accepts input from the user?

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  1. accept()

  2. prompt()

  3. input()

  4. enter()

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Correct Option: B

Which function identifies the data type of the operand?

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  1. isNumber()

  2. isString()

  3. typeof()

  4. Option 1 & 2

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Correct Option: C

What is the output for the below lines of code? x = 0/0; alert(x);

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  1. undefined

  2. infinity

  3. NaN

  4. None of the above

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Correct Option: C

What is the output of the alert function for the below lines of code? var sum, Sum; sum = 0; alert(Sum);

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  1. 0

  2. undefined

  3. Exception(0365): object undefined!

  4. Javascript error in the browser

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Correct Option: B

var mode = 1; switch (mode){ case 1: document.write('Mode value is 1'); case 2: document.write('Mode value is 2'); case 3: document.write('Mode value is 3'); }
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  1. Mode value is 1Mode value is 2Mode value is 3

  2. Mode value is 1

  3. JavaScript error in the browser

  4. None of the above

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Correct Option: A

What is the output for the below lines of code? var myArray = new Array(); myArray[10] = "This is the only element in this array"; alert(myArray.length);

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  1. 1

  2. 11

  3. undefined

  4. null

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Correct Option: B

What is the output for the below lines of code? var main_string = "JavaScript is the best Web Programming language"; var sub_string = "Script"; alert(main_string.indexOf(sub_string));

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  1. -1

  2. 4

  3. JavaScript error in the browser

  4. 5

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Correct Option: B

Which of the following refers to the parent of a window object?

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  1. window.opener

  2. parent

  3. window.parent

  4. All of the above

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Correct Option: D

Which event is triggered when an element loses focus?

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  1. onfocusout

  2. onblur

  3. onfocuslost

  4. All of the above

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Correct Option: B