arrayfilter

Array filtering utility.

Installation

npm install arrayfilter --save

Usage

• Accepting By Type
• Accepting By Pattern
• Rejecting Empty Entries
• Rejecting Duplicated Entries
• Rejecting By Pattern
• Rejecting By Type

Accepting By Type

arrayfilter.typeAccept(type) create a function which accepts entries by type matching.

"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.

"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.

"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.

"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.

"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.

"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']
 

License

This software is released under the MIT License.

Links

• arrayreduce
• arraysort