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JavaScript Iterators 迭代器
tryjs_iterator_reduce
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<!DOCTYPE html> <html> <body> <h1>JavaScript Iterators</h1> <h2>The reduce() Method</h2> <p>The reduce() method executes a reducer function for each iterator element.</p> <p id="demo"></p> <script> function myFunc(total, num) { return total + num; } // Create an Iterator const myIterator = Iterator.from([175, 50, 25]); // Reduce the Iterator let result = myIterator.reduce(myFunc); document.getElementById("demo").innerHTML = "The sum of all items is: " + result; </script> </body> </html>