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How to define a function in JavaScript?
The most common way to define a function in JavaScript is by using the “function” keyword, followed by a unique function name, a list of parameters (that might be empty), and a statement block surrounded by curly braces.
Syntax
Here’s the syntax −
<script>
<!--
function functionname(parameter-list) {
statements
}
//-->
</script>Try the following example. It defines a function called sayHello that takes no parameters,
<script>
<!--
function sayHello() {
alert("Hello World!");
}
//-->
</script>
Updated on 15-Jun-2020 12:04:16
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