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JavaScript RegExp \P 元字符
tryjsref_regexp_meta_not_p
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<!DOCTYPE html> <html> <body> <h1>Regular Expressions</h1> <h2>The \P Metacharacter</h2> <p>Match any character that is NOT a lowercase letter:</p> <p id="demo"></p> <script> let text1 = "A"; let text2 = "a"; let pattern = /\P{Lowercase_Letter}/u; result1 = pattern.test(text1); result2 = pattern.test(text2); document.getElementById("demo").innerHTML = text1 + " is " + result1 + ", " + text2 + " is " + result2; </script> </body> </html>