主页
JS 参考手册
JavaScript Set集合 union() 方法
tryjsref_set_union
运行 ❯
×
更改方向
保存代码
更改主题
<!DOCTYPE html> <html> <body> <h1>JavaScript Sets</h1> <h2>The union() Method</h2> <p>The union() method returns a new set containing the elements which are in this set, or in the argument set, or in both:</p> <p id="demo"></p> <script> const A = new Set(['a','b','c']); const B = new Set(['b','c','d']); const C = A.union(B); let text = ""; for (const x of C) { text += x; } document.getElementById("demo").innerHTML = "The union is: " + text; </script> </body> </html>