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JavaScript 正则表达式组修饰符(?flags:x)
tryjsref_regexp_groups_modifier
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<!DOCTYPE html> <html> <body> <h1>Regular Expressions</h1> <h2>Groups Modifier (?flag)</h2> <p>A case insenisitive search for "FreeW3C tutorials":</p> <p id="demo"></p> <script> let text = "FreeW3C Tutorials."; const pattern = /(?i:FreeW3C) tutorials/i; let result = text.match(pattern); document.getElementById("demo").innerHTML = result; </script> </body> </html>