Arrow functions in JavaScript

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Since their introduction arrow function have simplified how we declare functions in JavaScript arrow functions are similar to lambadas in kotlin programming language
Instead of writing a function as
function time (param){
    return Date.now()
}
You can simplify code by rewriting it as simply
let time (param) =>  {
    return Date.now()
}
Alternatively you can use a neatier syntax
let time = param => Date.now()
Arrow functions this context does not refer to their scope.

For further reading "learn es6 the dope way part ii arrow functions and the this keyword",

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