Javascript - Interview Questions and Answers for 'Symantec' | Search Interview Question

Javascript - Interview Questions and Answers for 'Symantec' - 4 question(s) found - Order By Newest

Q1. What is the difference between Java OR operator and Java script OR operator ?

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Q2. How do you debug Javascript code ?

JavaScript

Ans. Possible Answer - I use either Firebug or Chrome Developer tool.

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Q3. Difference between == and === ?

JavaScript

Ans. == compares values === is used in scripting languages for comparing two values as well as there data tpe. like in js,php.

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Q4. What is Array.Map function ? What will be output of following ?

const myArray = [1, 4, 9, 16];
const result = myArray.map(x => x * 2);

Ans. It will create an array with each value as x*2

[2, 8, 18, 32]

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