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`_.every` function on array using JavaScript Library underscore.js ( #shorts )
Hi Friends,
`_.every` function on array using JavaScript Library underscore.js
`_.every` is also utility function provided by the Underscore.js library that allows you to check if every element in an array satisfies a given condition.
In below example, we have an array of `numbers` and we use `_.every` to check if all the elements in the array are even. The `predicate` function returns `true` for even numbers (i.e. numbers that are divisible by 2), and so `_.every` returns `false` because not all elements in the array are even.
Note: `_.every` stops iterating over the array as soon as it encounters the first element that does not satisfy the condition, and returns `false` immediately.
// syntax
_.every(list, predicate, [context])
// example
var numbers = [1, 2, 3, 4, 5];
var allEven = _.every(numbers, function(num) {
return num % 2 === 0;
});
console.log(allEven); // false
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