Lodash is a JavaScript library that works on the top of underscore.js. Lodash helps in working with arrays, strings, objects, numbers, etc. It provides us with various inbuilt functions and uses a functional programming approach which makes coding in javascript easier to understand because instead of writing repetitive functions, tasks can be accomplished with a single line of code.
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Lodash Methods
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Description
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| _.countBy() |
It creates an object composed of keys generated from the results of running each element of collection through iteratee. |
| _.every() |
It checks if the predicate returns true for all elements of collection and iteration is stopped once the predicate returns falsely. |
| _.filter() |
It iterates over elements of collection, returning an array of all elements predicate returns true. |
| _.find() |
It access each value of the collection and returns the first element that passes a truth test for the predicate. |
| _.findLast() |
It iterates over the elements in a collection from the right to the left. |
| _.flatMap() |
It creates a flattened array of values by running each element in collection through iteratee and flattens the mapped results. |
| _.flatMapDeep() |
It creates a flattened array of values by running each element in collection through iteratee and flattens the mapped results. |
| _.flatMapDepth() |
It creates a flattened array of values by running each element in collection through iteratee and flattens the mapped results up to the given depth value. |
| _.forEach() |
It iterates over elements of collection and invokes iteratee for each element. |
| _.forEachRight() |
It iterates over elements of collection from right to left. |
| _.groupBy() |
It creates an object composed of keys generated from the results of running each element of collection through iteratee. |
| _.includes() |
It is used to find the value is in the collection or not. |
| _.invokeMap() |
It invokes the method at the given path of each element in the collection and returns an array of the results of each invoked method. |
| _.keyBy() |
It creates an object that composed of keys generated from the results of running an each element of collection through iteratee. |
| _.map() |
It creates an array of values by running each element in collection through the iteratee. |
| _.orderBy() |
It allows the sort orders of the iterates to sort by. |
| _.partition() |
It creates an array of elements split into two groups. |
| _.reduce() |
It reduces collection to value which is accumulated result of running each element in the collection through iteratee. |
| _.reduceRight() |
It iterates over elements of collection from right to left. |
| _.reject() |
This method returns elements of the collection that predicate does not return true. |
| _.sample() |
It will provide a random element from collection. |
| _.sampleSize() |
is used to give an array of n random elements from the given array. |
| _.shuffle() |
It creates an array of shuffled values from the given collection using a version of the Fisher-Yates shuffle algorithm. |
| _.size() |
It gets the size of collection by returning its length for array such as values. |
| _.some() |
It is used to check if predicate return true for any element of collection. |
| _.sortBy() |
It creates an array of elements which is sorted in ascending order by the results of running each element in a collection through iteratee. |
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Last Updated :
21 Jul, 2023
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