underscore zip without null values code example

Example 1: find element in array underscore js

console.log(_.find(response.data, function(item) {
    return item.TaskCategory.TaskCategoryId == $routeParams.TaskCategory; 
}));

Example 2: Underscore.js

var evens = _.filter([1, 2, 3, 4, 5, 6], function(num){ return num % 2 == 0; });
=> [2, 4, 6]