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JavaScript 正则表达式修饰符标志
tryjs_regexp_flag_u_1
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<!DOCTYPE html> <html> <body> <h1>Regular Expressions</h1> <h2>The /u Flag</h2> <p>The /u flag makes JavaScript regular expressions "Unicode-aware".</p> <p id="demo"></p> <script> let text = "䷀"; const pattern = /\u{04DC0}/u; let result = pattern.test(text); document.getElementById("demo").innerHTML = result; </script> </body> </html>