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JavaScript Set 集合方法
tryjs_set_list
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<!DOCTYPE html> <html> <body> <h1>JavaScript Sets</h1> <p>You can iterate over set values with for...of:</p> <p id="demo"></p> <script> // Create a Set const letters = new Set(["a","b","c"]); // List all Elements let text = ""; for (const x of letters) { text += x + "<br>"; } document.getElementById("demo").innerHTML = text; </script> </body> </html>