util-helpers/lib/replaceChar.js

一个基于业务场景的工具方法库

'use strict';

var ut2 = require('ut2');

function replaceChar(str, options) {
    if (str === void 0) { str = ''; }
    if (options === void 0) { options = {}; }
    var _a = options.char, char = _a === void 0 ? '*' : _a, exclude = options.exclude;
    var _b = options.start, start = _b === void 0 ? 3 : _b, _c = options.end, end = _c === void 0 ? -4 : _c, repeat = options.repeat;
    var realStr = ut2.toString(str);
    var strLen = realStr.length;
    if (Math.abs(start) >= strLen) {
        return realStr;
    }
    start = start >= 0 ? start : strLen + start;
    end = end >= 0 ? end : strLen + end;
    if (start >= end) {
        return realStr;
    }
    var middleStr = realStr.substring(start, end);
    if (exclude) {
        var reg = new RegExp("[^".concat(exclude, "]"), 'g');
        middleStr = middleStr.replace(reg, char);
    }
    else {
        repeat = typeof repeat === 'number' && repeat >= 0 ? repeat : middleStr.length;
        middleStr = char.repeat(repeat);
    }
    return realStr.substring(0, start) + middleStr + realStr.substring(end);
}

module.exports = replaceChar;