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JavaScript new Boolean() 方法
tryjsref_boolean_object1
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<!DOCTYPE html> <html> <body> <h1>JavaScript Booleans</h1> <h2>The new Boolean() Method</h2> <p>Booleans and boolean objects cannot be safely compared.</p> <p id="demo"></p> <script> let x = Boolean(false); let y = new Boolean(false); document.getElementById("demo").innerHTML = (x == y) + " " + (x === y ); </script> </body> </html>