locutus/esm/php/strings/vprintf.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

import { echo } from "../strings/echo.js";
import { sprintf } from "../strings/sprintf.js";
export function vprintf(format, ...restArgs) {
    //       discuss at: https://locutus.io/php/vprintf/
    //      original by: Ash Searle (https://hexmen.com/blog/)
    //      improved by: Michael White (https://getsprink.com)
    // reimplemented by: Brett Zamir (https://brett-zamir.me)
    //        example 1: vprintf("%01.2f", 123.1)
    //        returns 1: 6
    let values = [];
    if (restArgs.length === 1 && Array.isArray(restArgs[0])) {
        values = restArgs[0];
    }
    else {
        values = restArgs;
    }
    const ret = sprintf(format, ...values);
    if (ret === false) {
        return 0;
    }
    echo(ret);
    return ret.length;
}