String.prototype.padEnd() - JavaScript 编辑

The padEnd() method pads the current string with a given string (repeated, if needed) so that the resulting string reaches a given length. The padding is applied from the end of the current string.

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

Syntax

str.padEnd(targetLength [, padString])

Parameters

targetLength

The length of the resulting string once the current str has been padded. If the value is lower than str.length, the current string will be returned as-is.

padString Optional

The string to pad the current str with. If padString is too long to stay within targetLength, it will be truncated: for left-to-right languages the left-most part and for right-to-left languages the right-most will be applied. The default value for this parameter is "" (U+0020).

Return value

A String of the specified targetLength with the padString applied at the end of the current str.

Examples

Using padEnd

'abc'.padEnd(10);          // "abc       "
'abc'.padEnd(10, "foo");   // "abcfoofoof"
'abc'.padEnd(6, "123456"); // "abc123"
'abc'.padEnd(1);           // "abc"

Specifications

Specification
ECMAScript (ECMA-262) The definition of 'String.prototype.padEnd' in that specification.

Browser compatibility

BCD tables only load in the browser

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

See also

• String.prototype.padStart()