key-generator

Do you have to generate unique keys for your React lists? For some other Data Structures? Try the key-generator. It also contains iterator and list iterator for iterating through lists periodically.

How to install

> npm install --save mustehssun-key-generator

Example usage

const generate = serialSequenceGenerator();

console.log(generate());
console.log(generate());
console.log(generate());

Output: 1 2 3

It comes in very handy when you are constructing lists in React and each item of the list needs to have a unique key - even though the uniqueness is not functional, or technical, to you. You can use generate() on each item of the list. Like this:

return (
        <div>
            {list.map(elem => (<button key={generate()}>elem.text</button>))}
        </div>
)

You can also pass initialValue and prefix to the generator. Both parameters are optional.

const generate = serialSequenceGenerator(0, "abc");

console.log(generate());
console.log(generate());

Output: abc0 abc1 abc2

Custom Generator

const generate = sequenceGenerator(prev => prev * 2, 2);

console.log(generate());
console.log(generate());
console.log(generate());

Output: 2 4 8

Circular List Iterator

You can also use listIterator and circularListIterator to iterate over a list, one element at a time. Circular list iterator is an iterator that runs through the list in a circular fashion.

const generate = circularListIterator([1, 2]);
console.log(generate());
console.log(generate());
console.log(generate());
console.log(generate());

Output: 1 2 1 2

NPM URL: https://www.npmjs.com/package/mustehssun-key-generator