The Pair class

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简介

A pair is used by Ds\Map to pair keys with values.

Ds\Pair implements JsonSerializable {

/* 方法 */

public __construct ([ mixed $key [, mixed $value ]] )

}

Ds\Pair::clear — Removes all values.
Ds\Pair::__construct — Creates a new instance.
Ds\Pair::copy — Returns a shallow copy of the pair.
Ds\Pair::isEmpty — Returns whether the pair is empty
Ds\Pair::jsonSerialize — Returns a representation that can be converted to JSON.
Ds\Pair::toArray — Converts the pair to an array.