Expert Developer JavaScript Question:
Download Questions PDF

What is Shift() method in Javascript?

Expert JavaScript Developer Interview Question
Expert JavaScript Developer Interview Question

Answer:

► The shift() method is similar as the pop() method but the difference is that Shift method works at the beginning of the array.
► The shift() method take the first element off of the given array and returns it. The array on which is called is then altered.
► For example :
var myarray = ["apple ", "banana ", "mango "];
console.log(myarray.shift());
console.log(myarray);
► We get the following console output :
apple
["banana ", "mango "];
► When we call shift() on an empty array, it will return an undefined value.

Download Expert JavaScript Developer Interview Questions And Answers PDF

Previous QuestionNext Question
What is the function of Deferred scripts?Why would you include 'use strict' at the beginning of a JavaScript source file?