js fucntions parameters with type code example
Example 1: parameters types in javascript
/**
* My function description
* @param {String} a
* @param {String} b
* @param {Number} amount
* @example
* // returns "fooBar fooBar"
* myFunction('foo', 'Bar', 2)
* @returns {String}
*/
function myFunction(a, b, amount){
//do stuff
}
//Note that javascript is not a statically typed language and therefore you
//will not recieve any syntax errors for passing in the wrong types.
//The above code works in Visual Studio Code and intellisense.
Example 2: javascript function multiple parameters
function sum(...values) {
console.log(values);
}
sum(1);
sum(1, 2);
sum(1, 2, 3);
sum(1, 2, 3, 4);
function sum(...values) {
let sum = 0;
for (let i = 0; i < values.length; i++) {
sum += values[i];
}
return sum;
}
console.log(sum(1)); //1
console.log(sum(1, 2)); //3
console.log(sum(1, 2, 3)); // 5
console.log(sum(1, 2, 3, 4)); //10