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JavaScript 字符串 isWellFormed() 方法
tryjsref_string_iswellformed
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<!DOCTYPE html> <html> <body> <h1>JavaScript Strings</h1> <h2>The isWellFormed() Method</h2> <p>isWellFormed() returns true if a string is well formed.</p> <p id="demo"></p> <script> let text = "Hello World!"; let result = text.isWellFormed(); document.getElementById("demo").innerHTML = result; </script> </body> </html>