js的string.replaceall

方法是什么？

A：JavaScript中没有提供replaceall方法，但可以使用正则表达式替代。

例如：

var str = "Hello World Hello World";
str = str.replace(/World/g, "ChitGPT");  // 将所有的 "World" 替换为 "ChitGPT"
console.log(str);  // 输出 "Hello ChitGPT Hello ChitGPT"

其中正则表达式`/World/g`含义是全局查找"World"字符串，并进行替换操作。

相关问题

private String cleanXSS(String valueP) { // You'll need to remove the spaces from the html entities below String value = valueP.replaceAll("<", "<").replaceAll(">", ">"); value = value.replaceAll("<", "& lt;").replaceAll(">", "& gt;"); value = value.replaceAll("\\(", "& #40;").replaceAll("\\)", "& #41;"); value = value.replaceAll("'", "& #39;"); value = value.replaceAll("eval\\((.*)\\)", ""); value = value.replaceAll("[\\\"\\\'][\\s]*javascript:(.*)[\\\"\\\']", "\"\""); value = value.replaceAll("script", ""); value = cleanSqlKeyWords(value); return value; }

这段代码看起来像是一个用于防止跨站脚本攻击（XSS）的函数，它会将一些特殊字符替换成 HTML 实体，比如 `<` 替换成 `&lt;`，以防止攻击者在输入框中注入恶意脚本。另外，它也会使用正则表达式将一些特定的字符串替换为空字符串，比如将 `eval` 函数替换为空字符串，以防止攻击者在输入框中执行 JavaScript 代码。最后，它还会调用另外一个函数 `cleanSqlKeyWords`，可能是用于防止 SQL 注入攻击的函数。

with open(filename, 'wb') as f: OSError: [Errno 22] Invalid argument: 'polyfill.min.js?features=String.prototype.replaceAll'

This error message suggests that there is an issue with the filename that you are trying to open. The filename appears to be 'polyfill.min.js?features=String.prototype.replaceAll', which contains a question mark and may not be a valid filename on your operating system.

You can try renaming the file to remove any special characters or symbols and ensure that the filename is valid for your operating system. Alternatively, you can try specifying the full path to the file when opening it to ensure that it can be found and opened correctly.