README.md
arrayfilter
==========
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Array filtering utility.
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Installation
-----
```bash
npm install arrayfilter --save
```
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Usage
-------
+ [Accepting By Type](#accepting-by-type)
+ [Accepting By Pattern](#accepting-by-pattern)
+ [Rejecting Empty Entries](#rejecting-empty-entries)
+ [Rejecting Duplicated Entries](#rejecting-duplicated-entries)
+ [Rejecting By Pattern](#rejecting-by-pattern)
+ [Rejecting By Type](#rejecting-by-type)
### Accepting By Type
`arrayfilter.typeAccept(type)` create a function which accepts entries by type matching.
```Javascript
"use strict";
const arrayfilter = require('arrayfilter');
// Define a filter function.
let acceptString = arrayfilter.typeAccept('string');
// Execute filtering.
let values = ['foo', {}, 123].filter(acceptString);
console.log(values); // -> ['foo']
```
### Accepting By Pattern
`arrayfilter.patternAccept(pattern)` create a function which accepts entries by regex (or string) matching.
```Javascript
"use strict";
const arrayfilter = require('arrayfilter');
// Define a filter function.
let acceptFo = arrayfilter.patternAccept(/^fo/);
// Execute filtering.
let values = ['foo', 'bar', 'baz'].filter(acceptFo);
console.log(values); // -> ['foo']
```
### Rejecting Empty Entries
`arrayfilter.emptyReject()` create a function which rejects empty with rejects null, undefined and empty string.
```Javascript
"use strict";
const arrayfilter = require('arrayfilter');
// Define a filter function.
let rejectEmpty = arrayfilter.emptyReject();
// Execute filtering.
let values = ['foo', '', null, 'bar', undefined].filter(rejectEmpty);
console.log(values); // -> ['foo', 'bar']
```
### Rejecting Duplicated Entries
`arrayfilter.duplicateReject()` create a function which rejects empty with rejects null, undefined and empty string.
```Javascript
"use strict";
const arrayfilter = require('arrayfilter');
// Define a filter function.
let duplicateReject = arrayfilter.duplicateReject();
// Execute filtering.
let values = ['foo', 'bar', 'foo'].filter(duplicateReject);
console.log(values); // -> ['foo', 'bar']
```
### Rejecting By Pattern
`arrayfilter.patternReject(pattern)` create a function which rejects entries by regex (or string) matching.
```Javascript
"use strict";
const arrayfilter = require('arrayfilter');
// Define a filter function.
let rejectFo = arrayfilter.patternReject(/^fo/);
// Execute filtering.
let values = ['foo', 'bar', 'baz'].filter(rejectFo);
console.log(values); // -> ['bar', 'baz']
```
### Rejecting By Type
`arrayfilter.typeReject(type)` create a function which rejects entries by type matching.
```Javascript
"use strict";
const arrayfilter = require('arrayfilter');
// Define a filter function.
let rejectString = arrayfilter.typeReject('object');
// Execute filtering.
let values = ['foo', {}, {}].filter(rejectString);
console.log(values); // -> ['foo']
```
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License
-------
This software is released under the [MIT License](https://github.com/okunishinishi/node-arrayfilter/blob/master/LICENSE).
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Links
------
+ [arrayreduce](https://github.com/okunishinishi/node-arrayreduce)
+ [arraysort](https://github.com/okunishinishi/node-arraysort)
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