Does const work as function in ES6 sometimes?

Question

Like in this code,
const a="hello";
console.log(a);
here it works just like a variable.
But in here,
const add(x,y)=>{
let sum=x+y;
console.log (sum);
}
But here it treats like a function.
Why is that?
Help me to understand this.

Answer 1

const can not be used to define functions. Your second example will report a syntax error. However you can assign a function to a constant variable like this:

const add = (x,y) => {
let sum = x + y;
console.log(sum);
}

Answer 2

because you’re assigning the value of the constant variable `add` to a function. In javascript, a variables can have a function as a value. the way you are defining a function is with the lambda shorthand way introduced in ES6.