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Spread operator in function calls JavaScript
The spread syntax allows us to spread an array or any iterable to be expanded across zero or more arguments in a function call.
Following is the code for spread operator in function calls 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>Spread operator in function calls</h1> <div class="result"></div> <br /> <button class="Btn">CLICK HERE</button> <h3>Click on the above button to use spread operator to pass parameters to add() function</h3> <script> let resEle = document.querySelector(".result"); let BtnEle = document.querySelector(".Btn"); function add(a, b, c, d) { return a + b + c + d; } let arr = [1, 2, 3, 4]; BtnEle.addEventListener("click", () => { resEle.innerHTML = add(...arr); }); </script> </body> </html>
Output
On clicking the ‘CLICK HERE’ button −
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