js some array

1It just checks the array,
2for the condition you gave,
3if atleast one element in the array passes the condition
4then it returns true
5else it returns false

1['one', 'two'].some(item => item === 'one') // true
2['one', 'two'].some(item => item === 'three') // false

1const age= [2,7,12,17,21];
2
3age.some(function(person){
4return person > 18;}); //true
5
6//es6
7const age= [2,7,12,17,21];
8age.some((person)=> person>18); //true

1let array = [1, 2, 3, 4, 5];
2
3//Is any element even?
4array.some(function(x) {
5  return x % 2 == 0;
6}); // true

1const fruits = ['apple', 'banana', 'mango', 'guava'];
2
3function checkAvailability(arr, val) {
4  return arr.some(function(arrVal) {
5    return val === arrVal;
6  });
7}
8
9checkAvailability(fruits, 'kela');   // false
10checkAvailability(fruits, 'banana'); // true

1movies.some(movie => movie.year > 2015)
2// Say true if in movie.year only one (or more) items are greater than 2015
3// Say false if no items have the requirement (like and operator)