String.prototype.padStart() / String.prototype.padEnd()

Category: JavaScript
Type: New or changed feature
Status: Enabled by default (Chrome 57)
Intent stage: None

Summary

String formatting tools which returns a target/receiver string prepended or appended with a repeating pattern of characters: "foo".padStart(10, "0"); -> "0000000foo"; "foo".padEnd(10, "0"); -> "foo0000000";

Standards & signals

Specification: https://tc39.github.io/ecma262/#sec-string.prototype.padstart
Firefox: Shipped/Shipping
Safari: Shipped/Shipping
Web developers: Positive
Tracking bug: https://bugs.chromium.org/p/v8/issues/detail?id=4954

Docs: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padStart https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padEnd http://www.2ality.com/2015/11/string-padding.html

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