<!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: 18px;
font-weight: 500;
color: rebeccapurple;
}
</style>
</head>
<body>
<h1>Partial function in JavaScript</h1>
<div class="result"></div>
<button class="Btn">CLICK HERE</button>
<h3>
Click on the above button to see partial function invocation
</h3>
<script>
let resultEle = document.querySelector(".result");
function partialFunction(f) {
return function (a) {
return function (b) {
return f(a, b);
};
};
}
function multiply(a, b) {
return a * b;
}
document.querySelector(".Btn").addEventListener("click", () => {
resultEle.innerHTML = "partialFunction(multiply) = " + partialFunction(multiply) + "<br>";
resultEle.innerHTML += "partialFunction(multiply)(22) = " + partialFunction(multiply)(22) +
"<br>";
resultEle.innerHTML += "partialFunction(multiply)(22)(33) = " + partialFunction(multiply)(22)(33) + "<br>";
});
</script>
</body>
</html>