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88 lines
2.5 KiB
Markdown
88 lines
2.5 KiB
Markdown
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# num2fraction
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[](https://travis-ci.org/yisibl/num2fraction)
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[](https://www.npmjs.com/package/num2fraction)
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[](https://www.npmjs.com/package/num2fraction)
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[](http://opensource.org/licenses/MIT)
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> Converting Number to Fraction with Node.js.
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## Installation
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```console
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npm install num2fraction
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```
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## Usage
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```js
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var π = Math.PI
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var n2f = require('num2fraction')
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console.log(n2f(0)) // => 0
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console.log(n2f(.2)) // => 1/5
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console.log(n2f(1.1)) // => 11/10
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console.log(n2f(1.2)) // => 6/5
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console.log(n2f(1.3)) // => 13/10
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console.log(n2f(1.4)) // => 7/5
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console.log(n2f(1.5)) // => 3/2
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console.log(n2f(2)) // => 2/1
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console.log(n2f(2.1)) // => 21/10
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console.log(n2f(3)) // => 3/1
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console.log(n2f(2.555)) // => 511/200
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console.log(n2f(8.36)) // => 209/25
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console.log(n2f('3em')) // => 3/1
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console.log(n2f('1.5px')) // => 3/2
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console.log(n2f(7 / 9) // => 7/9
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console.log(n2f(8 / 9) // => 8/9
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console.log(n2f(512 / 999) // => 512/999
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console.log(n2f((2 * π / 3) / π) // => 2/3
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console.log(n2f((8 * 5) / (4 / 2)) // => 20/1
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```
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## Example
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Opera [old versions](http://www.opera.com/docs/specs/presto28/css/o-vendor/) support the non-standard `-o-min-device-pixel-ratio` or `-o-max-device-pixel-ratio` in CSS media queries.
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```css
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@media
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only screen and (-webkit-min-device-pixel-ratio: 2),
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only screen and ( min--moz-device-pixel-ratio: 2),
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only screen and ( -o-min-device-pixel-ratio: 2/1), /* Opera */
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only screen and ( min-device-pixel-ratio: 2),
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only screen and ( min-resolution: 192dpi), /* fallback */
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only screen and ( min-resolution: 2dppx) {
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}
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```
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## Changelog
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### v1.2.2
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* \+ Remove: Debug log message.
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### v1.2.1
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* \+ Fix: 0 must be converted to a string.
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### v1.2.0
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* \+ Fix: Accomodate rounding errors. (by @jamestalmage)
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* \+ Fix: The negative sign should be on numerator. (by @jamestalmage)
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### v1.1.0
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* \+ Use more precise (not fixed) precision factor for the calculation
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### v1.0.1
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* \- Remove "ci.testling.com"
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### V1.0.0
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> First release.
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## License
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[MIT](LICENSE)
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