Question

How to add new elements to the beginning of an array, and return the new length in JavaScript

Answer 1

var arr = ["java", "python", "javascript", "c#", "c", "c++"];

var len = arr.unshift("php", "assembler"); 

document.write(len + "<br />");

document.write(arr);

/*

run:

8
php,assembler,java,python,javascript,c#,c,c++ 

*/

 

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