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JavaScript Interview Questions
Questions Answers Views Company eMail

What are disadvantages of using javascript?

1208

Which built-in method returns the index within the calling string object of the first occurrence of the specified value?

1106

Which built-in method returns the string representation of the number’s value?

1181

What typeof returns for a null value?

1079

How do you include a comment in javascript?

950

How to convert “20” to number in javascript?

1056

Create an array in javascript with a list of 4 colors, assign that array to the variable, ‘colors’.

956

Is javascript case sensitive?

1122

Create a new javascript object with the keys of “fname” equal to your first name, “lname” equal to your last name, and “fcolors” equal to and array of 3 of your favorite colors. Assign this object to a variable called “me” and log it to the console.

1056

How would you organize your javascript code?

1074

What javascript method would convert the string “20” to an integer (on the fly) so “20” + 20 = 40?

975

what is event bubbling and event capturing in javascript?

1050

What are 2 (shorthand) boolean operators supported by javascript

1018

How can you declare a class in javascript?

1243

What is output of “20” + 20 + 20 and “20” + ( 20 + 20)? In javascript?

1055


Post New JavaScript Questions

Un-Answered Questions { JavaScript }

Describe the properties of an anonymous function in JavaScript?

1336


Can array in javascript be extended?

935


Explain the typeof operator?

1014


How to access an external javascript file that is stored externally and not embedded?

1183


How to validate a form in javascript?

987


List html dom mouse events?

942


Who introduced javascript?

977


How to call a function inside a function in javascript?

976


What are local variables in javascript?

1016


What is a noscript tag?

902


Should I disable javascript?

975


What is missing in my code? function numberTally(numList) { var evenTotal = 0; var oddTotal = 0; for (var i = 0; i <= numList.length; i++) { if i % 2 { // i is odd oddTotal += numList[i]; // or oddTotal = oddTotal + numList[i]; } else { // i is even evenTotal + numList[i]; } } alert(oddTotal); return evenTotal; }

3384


How we can get the value of an element using javascript?

1048


What does three dots mean in texting?

985


How to redirect a page to another page in javascript?

1043