104 lines
3.0 KiB
Markdown
104 lines
3.0 KiB
Markdown
# string-template
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[![build status][1]][2] [![dependency status][3]][4] [![coverage report][9]][10] [![stability index][15]][16]
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[![npm stats][13]][14]
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[![browser support][5]][6]
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A simple string template function based on named or indexed arguments
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## Example
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```js
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var format = require("string-template")
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var greeting
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// Format using an object hash with keys matching [0-9a-zA-Z]+
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greeting = format("Hello {name}, you have {count} unread messages", {
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name: "Robert",
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count: 12
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})
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// greeting -> "Hello Robert, you have 12 unread messages"
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// Format using a number indexed array
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greeting = format("Hello {0}, you have {1} unread messages", ["Robert", 12])
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// greeting -> "Hello Robert, you have 12 unread messages"
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// Format using optional arguments
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greeting = format("Hello {0}, you have {1} unread messages",
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"Robert",
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12)
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// greeting -> "Hello Robert, you have 12 unread messages"
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// Escape {} pairs by using double {{}}
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var text = format("{{0}}")
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// text -> "{0}"
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```
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## Compiling templates
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`string-template` exposes two template compiling options for when you need the
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additional performance. Arguments passed to the compiled template are of the
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same structure as the main `string-template` function, so either a single
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object/array or a list of arguments.
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```js
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var compile = require("string-template/compile")
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var greetingTemplate = compile("Hello {0}, you have {1} unread messages")
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var greeting = greetingTemplate("Robert", 12)
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// -> "Hello Robert, you have 12 unread messages"
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```
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Passing a truthy second argument to `compile` will opt into using `new Function`
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to generate a function. The function returned contains a literal string
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concatenation statement, interleaving the correct arguments you have passed in.
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```js
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var compile = require("string-template/compile")
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var greetingTemplate = compile("Hello {0}, you have {1} unread messages", true)
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// -> greetingTemplate generated using new Function
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var greeting = greetingTemplate(["Robert", 12])
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// -> "Hello Robert, you have 12 unread messages"
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```
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## Installation
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`npm install string-template`
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## Contributors
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- Matt-Esch
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## MIT Licenced
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[1]: https://secure.travis-ci.org/Matt-Esch/string-template.png
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[2]: https://travis-ci.org/Matt-Esch/string-template
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[3]: https://david-dm.org/Matt-Esch/string-template.png
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[4]: https://david-dm.org/Matt-Esch/string-template
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[5]: https://ci.testling.com/Matt-Esch/string-template.png
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[6]: https://ci.testling.com/Matt-Esch/string-template
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[9]: https://coveralls.io/repos/Matt-Esch/string-template/badge.png
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[10]: https://coveralls.io/r/Matt-Esch/string-template
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[13]: https://nodei.co/npm/string-template.png?downloads=true&stars=true
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[14]: https://nodei.co/npm/string-template
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[15]: http://hughsk.github.io/stability-badges/dist/unstable.svg
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[16]: http://github.com/hughsk/stability-badges
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[7]: https://badge.fury.io/js/string-template.png
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[8]: https://badge.fury.io/js/string-template
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[11]: https://gemnasium.com/Matt-Esch/string-template.png
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[12]: https://gemnasium.com/Matt-Esch/string-template
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