javascript 使用javascript删除除字母数字和空格之外的所有字符
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/14640486/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Remove all characters except alphanumeric and spaces with javascript
提问by Aaron
I like the solution povided by "Remove not alphanumeric characters from string. Having trouble with the [\] character" but how would I do this while leaving the spaces in place?
我喜欢“从字符串中删除非字母数字字符。遇到 [\] 字符有问题”提供的解决方案，但是我将如何在保留空格的同时做到这一点？
I need to tokenize string based on the spaces after it has been cleaned.
我需要在清理后根据空格对字符串进行标记。
回答by Explosion Pills
input.replace(/[^\w\s]/gi, '')
Shamelessly stolen from the other answer. ^in the character class means "not." So this is "not" \w(equivalent to \W) and not \s, which is space characters (spaces, tabs, etc.) You can just use the literal if you need.
无耻地从另一个答案中窃取。 ^在字符类中的意思是“不是”。所以这是“not” \w（相当于\W）而不是\s，它是空格字符（空格、制表符等）。如果需要，您可以只使用文字。
回答by Itang Sanjana
I know this is an old thread, but so popular that appears at the top of a Google search. So, as an alternative, the accepted answer and comment from 3limin4t0r inspired me to:
我知道这是一个旧线程，但非常受欢迎，出现在 Google 搜索的顶部。因此，作为替代方案，3limin4t0r 接受的答案和评论启发了我：
.replace(/\W+/g, " ")
IMHO
恕我直言
const input = document.querySelector("input");
const button = document.querySelector("button");
const output = document.querySelector("output");
button.addEventListener("click", () => {
output.textContent = input.value.replace(/\W+/g, " ");
})<input>
<button>Replace</button>
<p>
<output></output>
</p>