`_.uniq` function on array using JavaScript Library underscore.js ( #shorts )

Hi Friends,

`_.uniq` function on array using JavaScript Library underscore.js

`_.uniq` is also utility function in Underscore.js library that allows you to create a new array that contains only the unique elements from an existing array.

In below example, we have an array `people` that contains duplicate objects with different ages. We use `_.uniq` with an iteratee function that returns the person's name, to create a new array `uniquePeople` that contains only the unique objects based on their name. The resulting `uniquePeople` array contains the objects for Harry, Peter, and Ronnie but only the first occurrence of Harry is included because the iterate function returns the same value for both Harry objects.

// syntax
_.uniq(array, [isSorted], [iteratee])

//example
var people = [
{ name: "Harry", age: 30 },
{ name: "Peter", age: 25 },
{ name: "Harry", age: 35 },
{ name: "Ronnie", age: 30 },
];

var uniquePeople = _.uniq(people, false, function (person) {
return person.name;
});

console.log(uniquePeople);
// [
// { name: "Harry", age: 30 },
// { name: "Peter", age: 25 },
// { name: "Ronnie", age: 30 }
// ]

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