Method randNumberGenerator

src/danfojs-base/shared/utils.ts:508–529

* Generates n random numbers between start and end. * @param start * @param end * @param size

(start: number, end: number, size: number)

     * @param size 
     */
    randNumberGenerator(start: number, end: number, size: number) {
        let genNum: Array<number> = [];

        function randi(a: number, b: number) {
            return Math.floor(Math.random() * (b - a) + a);
        }

        function recursive(val: number, arr: Array<number>): any {
            if (!arr.includes(val)) {
                return val;
            }
            val = randi(start, end);
            recursive(val, arr);
        }

        for (let i = 0; i < size; i++) {
            let genVal = randi(start, end);
            let recursiveVal = recursive(genVal, genNum);
            genNum.push(recursiveVal);
        }
        return genNum;
    }

    /**
     * Throws error when a required parameter is missing.