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JavaScript 字符串 trimEnd() 方法
tryjsref_string_trimend
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<!DOCTYPE html> <html> <body> <h1>JavaScript Strings</h1> <h2>The trimEnd() Method</h2> <p id="demo"></p> <script> let text1 = " Hello World! "; let text2 = text1.trimEnd(); document.getElementById("demo").innerHTML = "Length text1 = " + text1.length + "<br>Length text2 = " + text2.length; </script> </body> </html>