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JavaScript Iterator find() 方法
tryjsref_iterator_find
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<!DOCTYPE html> <html> <body> <h1>JavaScript Iterators</h1> <h2>The find() Method</h2> <p>The find() method returns the value of the first iterator element that passes a test provided by a test function.</p> <p id="demo"></p> <script> // Create an Iterator const myIterator = Iterator.from([3, 10, 18, 30, 20]); // Find first element greater than 18 let result = myIterator.find(x => x > 18); document.getElementById("demo").innerHTML = result; </script> </body> </html>