javascript any is array code example

Example 1: js some

movies.some(movie => movie.year > 2015)
// Say true if in movie.year only one (or more) items are greater than 2015
// Say false if no items have the requirement (like and operator)

Example 2: js any array

// There's no isEmpty or any method. 
// You can define your own .isEmpty() or .any()

Array.prototype.isEmpty = function() {
    return this.length === 0;
}

Array.prototype.any = function(func) {
   return this.some(func || function(x) { return x });
}