Util.toggle NPM

util.toggle

Functions used to toggle strings on/off within a Set

Installation

This module uses yarn to manage dependencies and run scripts for development.

To install as an application dependency:

$ yarn add --dev util.toggle

To build the app and run all tests:

$ yarn run all

Overview

A set of functions used to toggle strings on/off within a Set of strings. The use case for this is managing the set of class descriptors programatically on a React component.

Usage

Toggle string on/off

import {toggle} from 'util.toggle';

const x: Set<string> = new Set<string>();

x.add('abc');
x.add('def');

// x => {'abc', 'def'}

toggle(x)(
	'abc'
);

// x => {'def'}

toggle(x)(
	'abc'
);

// x => {'abc', 'def'}

toggle(x)(
	'abc',
	'def'
);

// x => {}

Toggle string based on predicate

import {toggleIf} from 'util.toggle';

const x: Set<string> = new Set<string>();

x.add('abc');
x.add('def');

// x => {'abc', 'def'}

toggleIf(x, false)(
	'abc'
);

// x => {'abc', 'def'}

toggle(x, true)(
	'abc'
);

// x => {'def'}

Toggle string on based on if/else predicate

import {toggleOnIfElse} from 'util.toggle';

const x: Set<string> = new Set<string>();

x.add('abc');

// x => {'abc'}

toggleOnIfElse(x, false)(
	'abc'
)(
	'def'
);

// x => {'abc', 'def'}

x.delete('abc');

// x => {'def'}

toggleOnIfElse(x, true)(
	'abc'
)(
	'ghi'
);

// x => {'abc', 'def'}