function replaceStrFormIndexArr(str, replaceStr, indexArr) {
    let arr = [];
    let result = "";
    let index = 0;

    if (!indexArr || indexArr.length < 1) {
        return str;
    }
    for (let i = 0; i < indexArr.length; i++) {
        let indexItem = indexArr[i];
        let begin = indexItem.begin;

        result = result + str.substring(index, begin) + replaceStr;
        index = indexItem.end + 1;

        if (i == indexArr.length - 1) {
            result = result + str.substring(index);
        }
    }

    return result;
}

exports.replaceStrFormIndexArr=replaceStrFormIndexArr;