zd-once

Ensure a function is only called once. Zero deps and simple codebase.

Install

$ npm install zd-once

Usage

const {
    once
} = require('zd-once');

function sum(a, b) {
    return a + b;
}
let sumOnce = once(sum);
console.log(sumOnce(1, 2)); // prints 3
console.log(sumOnce(1, 2)); // prints nothing

API

• once(fn) ensures a function is called only once.
• onceStrict(fn) similar to once(fn). It will throw an error if called more than once.