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Tiny utility to create unions and de-duplicated lists
Weekly downloads
Package description
The uniqs npm package is a simple utility that allows you to filter out duplicate values from an array. It is particularly useful when you need to ensure that a list contains only unique items.
Removing duplicates from an array
This feature allows you to pass an array to the uniqs function, and it returns a new array with all the duplicate values removed, leaving only unique items.
[...new Set([1, 2, 2, 3, 4, 4, 5])] // returns [1, 2, 3, 4, 5]
lodash.uniq is a method from the popular Lodash library that produces a duplicate-free version of an array. It is similar to uniqs but comes as part of a larger utility library, which might be more suitable for projects that require a wide range of utility functions.
Underscore.js is a utility library that contains a uniq function, which is similar to uniqs. It offers a broader set of utility functions for manipulating and working with data. Unlike uniqs, which is focused solely on array deduplication, Underscore provides a more extensive toolkit for various operations.
array-unique is another npm package that removes duplicate values from an array. It is similar to uniqs in functionality but may have different performance characteristics or implementation details.
Readme
Example:
var uniqs = require('uniqs');
var foo = { foo: 23 };
var list = [3, 2, 2, 1, foo, foo];
uniqs(list);
// => [3, 2, 1, { foo: 23 }]
You can pass multiple lists to create a union:
uniqs([2, 1, 1], [2, 3, 3, 4], [4, 3, 2]);
// => [2, 1, 3, 4]
Passing individual items works too:
uniqs(3, 2, 2, [1, 1, 2]);
// => [3, 2, 1]
This package has been written to accompany utilities like flatten as alternative to full-blown libraries like underscore or lodash.
The implementation is optimized for simplicity rather than performance and looks like this:
module.exports = function uniqs() {
var list = Array.prototype.concat.apply([], arguments);
return list.filter(function(item, i) {
return i == list.indexOf(item);
});
};
MIT
FAQs
Tiny utility to create unions and de-duplicated lists
The npm package uniqs receives a total of 2,372,430 weekly downloads. As such, uniqs popularity was classified as popular.
We found that uniqs demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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