for function in javascript code example

Example 1: js function

function name(parameter1, parameter2, parameter3) {
// what the function does
}

Example 2: declare function javascript

function myFunction(var1, var2) {
  return var1 * var2;
}

Example 3: how to use function in javascript

/* Declare function */
function myFunc(param) {
  // Statements 
}