Repeat a string: Difference between revisions
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=={{header|JavaScript}}== |
=={{header|JavaScript}}== |
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This solution creates an array of n+1 |
This solution creates an empty array of length n+1, then uses the array's join method to effectively concatenate the string n times. Note that extending the prototype of built-in objects is not a good idea if the code is to run in a shared workspace. |
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<lang javascript>String.prototype.repeat = function(n) { |
<lang javascript>String.prototype.repeat = function(n) { |
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return new Array(1 + n).join(this); |
return new Array(1 + n).join(this); |
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alert("ha".repeat(5)); // hahahahaha</lang> |
alert("ha".repeat(5)); // hahahahaha</lang> |
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=={{header|K}}== |
=={{header|K}}== |
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