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JavaScript Array fill() function
The fill() method of JavaScript is used to fill the elements in an array with a static value.
The syntax is as follows −
array.fill(val, start, end)
Above, val is the value to fill the array, start is the index to begin filling the array, whereas end is the index to stop filling the array.
Let us now implement the fill() method in JavaScript −
Example
<!DOCTYPE html>
<html>
<body>
<h2>Ranking Points</h2>
<button onclick="display()">Fill</button>
<p id="demo"></p>
<script>
var pointsArr = [50, 100, 200, 300, 400, 500, 600];
document.getElementById("demo").innerHTML = pointsArr;
function display() {
document.getElementById("demo").innerHTML = pointsArr.fill(1000);
}
</script>
</body>
<!DOCTYPE html>Output
Click “Fill” button to fill the array −
Example
<!DOCTYPE html>
<html>
<body>
<h2>Student Name</h2>
<button onclick="display()">Fill</button>
<p id="demo"></p>
<script>
var stdName = ["John", "Tom", "David"];
document.getElementById("demo").innerHTML = stdName;
function display() {
document.getElementById("demo").innerHTML = stdName.fill("Jacob");
}
</script>
</body>
<!DOCTYPE html>Output
Click “Fill” to fill the array −
Updated on: 17-Dec-2019
240 Views
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