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Javascript Repeat a String

This can be done using the .repeat() method:









Throws a RangeError

In the general case, this should be done using a correct polyfill for the ES6 String.prototype.repeat() method.
Otherwise, the idiom new Array(n + 1).join(myString) can repeat n times the string myString:

var myString = "abc";
var n = 3;
new Array(n + 1).join(myString);




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