字符串脱敏处理

let originalData= '123456asqwedf01234'
let strIng = this.desensitization(originalData, 6, -5)//从第六位开始到倒数第五位脱敏
console.log(strIng)   //  123456*******01234

//方法
desensitization(str, beginLen, endLen){
    let len = str.length;
    let firstStr = str.substr(0, beginLen);
    let lastStr = str.substr(endLen);
    let middleStr = str.substring(beginLen, len-Math.abs(endLen)).replace(/[\s\S]/ig, '*');
    let tempStr = firstStr+middleStr+lastStr;
    return tempStr;
}