range

range.js

function range(start, end, step) {

    if (arguments.length === 0) {
        throw new Error('range fuction expect at least 1 argument')
    }

    if (arguments.length === 1) {
        end = start
        start = 0
        step = 1
    }

    if (arguments.length === 2) {
        step = 1
    }
    
    if (arguments.length === 3) {
        if (step === 0) throw new Error('step can not be 0')
    }

    return Array.from({
        length: Math.abs(Math.ceil((end - start) / step))
    }, (_,index) => index*step + start);

}