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basic-collection
Advanced tools
A generic collection class to contain array-like data.
$ npm install basic-collection
You can load basic-collection
like a typical node module or using the global variable basicCollection
:
let Collection = require( "basic-collection" );
// or...
let Collection = window.basicCollection;
import BasicCollection from "basic-collection";
let Collection = new BasicCollection;
Collection.set( "key_1", "value_1" );
Collection.set( "key_2", "value_2" );
Collection.set( 1234567, true );
Collection.get( "key_1" ); // value_1
Collection.get( "key_2" ); // value_2
Collection.get( "key_3", "default" ); // default
Collection.has( "key_1" ); // true
Collection.has( "key_2" ); // true
Collection.has( "key_3" ); // false
Collection.remove( "key_2" );
console.log( Collection.size ); // 2
console.log( Collection.keys ); // [ 'key_1', 1234567 ]
console.log( Collection.values ); // [ 'value_1', true ]
console.log( Collection.entries ); // [ [ 'key_1', 'value_1' ], [ '1234567', 'true' ] ]
Collection.each( ( key, value, map ) => {
console.log( `Collection[${key}] = ${value}` );
} );
Collection.clear();
console.log( Collection.size ); // 0
import BasicCollection from "basic-collection";
class MyCollection {
constructor( parameters ) {
super( parameters );
}
normalize( key ) {
return `transformed_${key}`;
}
};
let Collection = new MyCollection;
Collection.set( "key_1", "value_1" );
Collection.set( "key_2", "value_2" );
console.log( Collection.keys );
// => [ 'transformed_key_1', 'transformed_key_2' ]
You can filter data using patterns. A pattern can contain wildcards. There are predefined wildcards by a basic collection:
[digit] // Match /([0-9]+)/
[alnum] // Match /([0-9A-Za-z]+)/
[alpah] // Match /([A-Za-z]+)/
[xdigit] // Match /([0-9A-Fa-f]+)/
[punct] // Match /([\p{P}\d]+)/
[print] // Match /([\x20-\x7e]*)/
[upper] // Match /([A-Z]+)/
[lower] // Match /([a-z]+)/
[all] // Match /(.*?)/
import BasicCollection from "basic-collection";
let Collection = new BasicCollection;
Collection.set( "key_1", "value_1" );
Collection.set( "key_2", "value_2" );
Collection.set( "test1", "1_abc" );
Collection.set( "test2", "2_def" );
Collection.filterByKey( "key_[digit]" );
// => [ 'key_1', 'key_2' ]
Collection.filterByValue( "[digit]_[lower]" );
// => [ '1_abc', '2_def' ]
Creates a new BasicCollection
instance with custom parameters in [ [ 'key1', 'value1' ], [ 'key2', 'value2' ] ]
format.
Normalizes data key.
Sets an attribute for the current collection. If the attribute name already exists, its value will be overwritten.
Returns an attribute of the collection or a default value if the key does not exist.
Checks if an attribute exists in the current collection.
Removes an attribute from the current collection.
Clears all values.
Executes a callback for each element of this Collection.
Returns keys that match a pattern.
Returns values that match a pattern.
Counts parameters.
Returns a new Iterator object that contains an array of [key, value]
for each element in the Collection in insertion order.
Returns a new Iterator object that contains the keys for each element in the Collection in insertion order.
Returns a new Iterator object that contains the values for each element in the Collection in insertion order.
$ npm test
FAQs
A generic collection class to contain array-like data
We found that basic-collection demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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