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37 lines
871 B
Markdown
37 lines
871 B
Markdown
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## left-pad
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String left pad
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[![Build Status][travis-image]][travis-url]
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## Install
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```bash
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$ npm install left-pad
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```
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## Usage
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```js
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const leftPad = require('left-pad')
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leftPad('foo', 5)
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// => " foo"
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leftPad('foobar', 6)
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// => "foobar"
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leftPad(1, 2, '0')
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// => "01"
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leftPad(17, 5, 0)
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// => "00017"
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```
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**NOTE:** The third argument should be a single `char`. However the module doesn't throw an error if you supply more than one `char`s. See [#28](https://github.com/stevemao/left-pad/pull/28).
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**NOTE:** Characters having code points outside of [BMP plan](https://en.wikipedia.org/wiki/Plane_(Unicode)#Basic_Multilingual_Plane) are considered a two distinct characters. See [#58](https://github.com/stevemao/left-pad/issues/58).
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[travis-image]: https://travis-ci.org/stevemao/left-pad.svg?branch=master
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[travis-url]: https://travis-ci.org/stevemao/left-pad
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