在JavaScript字符串中转义单引号以进行JavaScript评估 [英] Escaping single quotes in JavaScript string for JavaScript evaluation

问题描述

我有一个项目，其中评估了一些JavaScript var。因为字符串需要转义（仅限单引号），所以我在测试函数中编写了完全相同的代码。我有以下一些非常简单的JavaScript代码：

I have a project, in which some JavaScript var is evaluated. Because the string needs to be escaped (single quotes only), I have written the exact same code in a test function. I have the following bit of pretty simple JavaScript code:

function testEscape() {
    var strResult = "";
    var strInputString = "fsdsd'4565sd";

    // Here, the string needs to be escaped for single quotes for the eval 
    // to work as is. The following does NOT work! Help!
    strInputString.replace(/'/g, "''");

    var strTest = "strResult = '" + strInputString + "';";
    eval(strTest);
    alert(strResult);
}

我想提醒它，说： fsdsd '4565sd 。

推荐答案

事情是 .replace（）不会修改字符串本身，所以你应该写如下：

The thing is that .replace() does not modify the string itself, so you should write something like:

strInputString = strInputString.replace(...

你好像没有正确地逃避角色。以下对我有用：

It also seems like you're not doing character escaping correctly. The following worked for me:

strInputString = strInputString.replace(/'/g, "\\'");

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