如何使用replace（）替换Javascript中的星号？ [英] How do I replace an asterisk in Javascript using replace()?

问题描述

使用JQuery，我从MySQL数据库中的某些数据的本质查询框中提取值。知道大多数用户将使用'*'（星号）作为通配符值并且MySQL使用'％'字符，我想将任何星号转换为'％'。

Using JQuery, I'm extracting the value from what is essentially a query box for some data in a MySQL database. Knowing that most users will use an '*' (asterisk) as a wildcard value and that MySQL uses the '%' character, I want to convert any asterisks to '%'.

通常情况下，这就像使用

Normally, this would just be as simple as using

queryString = inputText.replace('*', '%');

但是我没有成功。 Javascript的 replace（）函数只替换第一个匹配项，因此它不会替换最后一个星号，如 * Foo *

but I've had little success with that. Javascript's replace() function only replaces the first occurrence, so it's not replacing the last asterisk in something like *Foo*

我尝试的第二个选项是使用正则表达式，它也不起作用：

The second option I tried was using a regular expression, which also didn't work:

queryString = inputText.replace(/\x2a/g, '%');

如何用'％'（百分号）替换'*'（星号）？我想象有一个非常简单的正则表达式，或者我忽视的东西。

How can I replace the '*' (asterisks) with a '%' (percent sign)? I'd imagine there's a really simple regular expression, or something I'm overlooking.

推荐答案

尝试：

queryString = inputText.replace(/\*/g, '%');

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