• 修复ueditor百度编辑器在IE8下shCore.js报错'undefined'错误的

  • 发表时间:2018-07-12 17:00 | 秀站网 | 点击数:
  • ueditor在IE8下点击任意文本框报脚本错误

    错误问题:

    在IE8下出现脚本错误 'undefined' 为空或不是对象 的问题

    出现问题的文件为:

    shCore.js

    行数:299行

    文件路径:ueditor/third-party/SyntaxHighlighter/shCore.js

    报错的代码为:

    299行

    real.replace.call(str.toString().slice(match.index), r2, function () {
     for (var i = 1; i < arguments.length - 2; i++) {
      if (arguments[i] === undefined)
        match[i] = undefined;
       }
    });

    错误原因为:299行中的

    str.toString().slice(match.index)

    传递进来的str变量未经过判断

    在函数开始处增加

    if(str!==undefined) 既可以修复该问题

    RegExp.prototype.exec = function (str) {
     if(str!==undefined){
     
     
            var match = real.exec.apply(this, arguments),
                name, r2;
            if (match) {
                // Fix browsers whose `exec` methods don't consistently return `undefined` for
                // nonparticipating capturing groups
                if (!compliantExecNpcg && match.length > 1 && indexOf(match, "") > -1) {
                    r2 = RegExp(this.source, real.replace.call(getNativeFlags(this), "g", ""));
                    // Using `str.slice(match.index)` rather than `match[0]` in case lookahead allowed
                    // matching due to characters outside the match
                    real.replace.call(str.toString().slice(match.index), r2, function () {
                        for (var i = 1; i < arguments.length - 2; i++) {
                            if (arguments[i] === undefined)
                                match[i] = undefined;
                        }
                    });
                }
                // Attach named capture properties
                if (this._xregexp && this._xregexp.captureNames) {
                    for (var i = 1; i < match.length; i++) {
                        name = this._xregexp.captureNames[i - 1];
                        if (name)
                           match[name] = match[i];
                    }
                }
                // Fix browsers that increment `lastIndex` after zero-length matches
                if (!compliantLastIndexIncrement && this.global && !match[0].length && (this.lastIndex > match.index))
                    this.lastIndex--;
            }
            return match;
      }
        };

    作者原文链接: 蓝枫叶

分享到:
  • 上一篇:鹤蚌相争,谁是渔翁? 下一篇:见证六年成长 感谢一路同行
  • 相关 明星娱乐 资讯
    精彩图库
    • 爱美
    • 健康
    • 情感
    • 美体