主页
JS 参考手册
JavaScript RegExp [\b] 元字符
tryjsref_regexp_meta_backspace
运行 ❯
×
更改方向
保存代码
更改主题
<!DOCTYPE html> <html> <body> <h1>Regular Expressions</h1> <h2>The [\b] Metacharacter</h2> <p>Find the position of a backspace character:</p> <p id="demo"></p> <script> let text = "Visit FreeW3C.\bLearn JavaScript."; let pattern = /[\b]/; let result = text.search(pattern); document.getElementById("demo").innerHTML = result; </script> </body> </html>