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JavaScript 正则表达式修饰符标志
tryjs_regexp_groups_modifier
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<!DOCTYPE html> <html> <body> <h1>Regular Expressions</h1> <h2>Groups Modifier (?flag)</h2> <p>Search for "freew3c tutorials" (with only FreeW3C case-intensitive):</p> <p id="demo"></p> <script> let text = "FreeW3C tutorials."; const pattern = /(?i:FreeW3C) tutorials/; let result = pattern.test(text); document.getElementById("demo").innerHTML = result; </script> </body> </html>