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The yield* expression/keyword in JavaScript.
The yield* expression is used to refer to another generator or iterable object.
Following is the code to implement yield* expression/keyword in JavaScript −
Example
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
body {
font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
.result {
font-size: 20px;
font-weight: 500;
color: blueviolet;
}
</style>
</head>
<body>
<h1>yield* keyword in JavaScript</h1>
<div class="result"></div>
<br />
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to iterate over test2 and see the value yielded</h3>
<script>
let resEle = document.querySelector(".result");
let BtnEle = document.querySelector(".Btn");
function* test() {
yield 12;
yield 24;
yield 36;
}
function* test2() {
yield* test();
}
let iterator = test2();
BtnEle.addEventListener("click", () => {
resEle.innerHTML = iterator.next().value + "<br>";
resEle.innerHTML += iterator.next().value + "<br>";
resEle.innerHTML += iterator.next().value + "<br>";
});
</script>
</body>
</html>
Output
On clicking the ‘CLICK HERE’ button −
Updated on: 2020-07-20T08:39:33+05:30
149 Views
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