Loop and function in ESC 6 part 3

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Loops and Functions in ES6

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Default Parameters in ES6

In ES6, we can put the default values right in the signature of the functions.
For example:

function test(a, b = 3, c = 42) {
return a + b + c;
}
console.log(test(5)); //50Try It Yourself

And here's an example of an arrow function with default parameters:const test = (a, b = 3, c = 42) => {
return a + b + c;
}
console.log(test(5)); //50
Default value expressions are evaluated at function call time from left to right. This also means that default expressions can use the values of previously-filled parameters.