Lodash

lodash remove duplicates

lodash remove duplicates
  1. How do I remove duplicates in Lodash?
  2. How do I use uniqBy in Lodash?
  3. How do I remove an object from an array using Lodash?
  4. Is Lodash empty?
  5. Which is better underscore or Lodash?
  6. Is Lodash still needed 2020?
  7. Is Lodash faster than native?
  8. Is Lodash tree Shakable?
  9. Should we use Lodash?
  10. How do I import Lodash into react?
  11. How does Lodash get work?
  12. How do I merge two objects in Lodash?

How do I remove duplicates in Lodash?

“Lodash remove duplicates from array” Code Answer

  1. var users = [
  2. id:1,name:'ted',
  3. id:1,name:'ted',
  4. id:1,name:'bob',
  5. id:3,name:'sara'
  6. var uniqueUsersByID = _. uniqBy(users,'id'); //removed if had duplicate id.
  7. var uniqueUsers = _. uniqWith(users, _. isEqual);//removed complete duplicates.

How do I use uniqBy in Lodash?

The _. uniqBy method is similar to _. uniq except that it accepts iteratee which is invoked for each element in an array to generate the criterion by which uniqueness is computed. The order of result values is determined by the order they occur in the array.

How do I remove an object from an array using Lodash?

Calling the lodash function (by () ) creates a LoDash object that wraps undefined . That's not what you want; you want the lodash function itself, which contains static methods. Remove that.

Is Lodash empty?

The Lodash _. isEmpty() Method Checks if the value is an empty object, collection, map, or set. Objects are considered empty if they have no own enumerable string keyed properties. Collections are considered empty if they have a 0 length.

Which is better underscore or Lodash?

Lodash: It is a JavaScript utility library that delivers consistency, modularity, and performance to its code.
...
Differences between lodash and underscore:

LodashUnderscore
Lodash is significantly larger than Underscore with a size of 33KBUnderscore lies at about 16KB only.

Is Lodash still needed 2020?

We still use Lodash in production. It's not as crucial as it used to be, but it's still a useful library of utility functions that are extremely battle-tested, and there's no reason to reinvent the wheel.

Is Lodash faster than native?

Lodash is extremely well-optimized as far as modern JS goes, but, as you may know, nothing can be faster than native implementation. Even if Lodash uses the same API under-the-hood, function call overhead is still present. Some might say that these are just some micro-optimizations.

Is Lodash tree Shakable?

Using the webpack bundle analyzer revealed that Lodash is typically one of the largest dependencies we have on our projects besides React and Leaflet. Lodash is ripe for tree-shaking because of its modular design.

Should we use Lodash?

Lodash adds 72K for a single function. Of course this doesn't mean that every function you import will add an additional 72K and as you use more functions it will only be a little more. ... Lodash is a huge chunk of our build for using a single function that we can write ourselves in one line of code.

How do I import Lodash into react?

3 Ways to Import Functions From Lodash

  1. Import the whole library: import _ from 'lodash'; Pros: Only one import line. Cons: ...
  2. Import specific methods inside of curly brackets: import map, tail, times, uniq from 'lodash'; Pros: Only one import line (for a decent amount of functions) ...
  3. Import specific methods one by one:

How does Lodash get work?

get() function in Lodash lets you get deeply nested properties in an object without worrying about whether an intermediate property is null or undefined .

How do I merge two objects in Lodash?

If both objects have a property with the same name, then the second object property overwrites the first. The best solution in this case is to use Lodash and its merge() method, which will perform a deeper merge, recursively merging object properties and arrays. See the documentation for it on the Lodash docs.

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