@fruitsjs/util/src/internal/padStartPolyfill.ts

Useful utilities and tools for building Fruits Eco-Blockchain applications

/** @ignore */
/** @internal */
/** @module util */

// https://github.com/uxitten/polyfill/blob/master/string.polyfill.js
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padStart

// @ts-ignore
if (!String.prototype.padStart) {
    // @ts-ignore
    String.prototype.padStart = function padStart(targetLength, padString) {
        targetLength = targetLength >> 0;
        padString = String(padString !== undefined ? padString : ' ');
        if (this.length >= targetLength) {
            return String(this);
        } else {
            targetLength = targetLength - this.length;
            if (targetLength > padString.length) {
                padString += padString.repeat(targetLength / padString.length);
            }
            return padString.slice(0, targetLength) + String(this);
        }
    };
}