Filling a string of a given length

JavaScript performance comparison

Test case created by Josh


Comparison of two ways in a which a string of a given length can be created and filled with a given character.

Preparation code

Benchmark.prototype.setup = function() {
    this.length = 100;
    this.char = '*';

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

Testing in unknown unknown
Test Ops/sec
Array Fill Map Join
Array.apply(null, new Array(this.length))
                                        .map(String.prototype.valueOf, this.char)
Array Join
(new Array(this.length + 1)).join(this.char)

You can edit these tests or add even more tests to this page by appending /edit to the URL.

Compare results of other browsers


Comment form temporarily disabled.

Add a comment