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Lodash Object Complete Reference

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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 various inbuilt object functions to access and perform operations on objects.

Methods

Description

_.assign()It assigns the enumerable string keyed properties of the given source objects to the destination objects.
_.assignIn()Tt iterates over its own and inherited source properties.
_.assignInWith()It accepts customizer which is called in order to generate assigned value.
_.assignWith()It accepts customizer which is called in order to generate assigned value.
_.at()It creates an array of values corresponding to paths of object.
_.create()It creates an object that inherits from the prototype object.
_.defaults()It assigns properties of source objects to the destination object for all destination properties.
_.defaultsDeep()This method recursively assigns default properties.
_.entries()It creates an array of keyed-value pairs for the specified object.
_.entriesIn()It creates an array of own and inherited enumerable string keyed-value pairs for the specified object.
_.extend()It iterates over its own and inherited source properties.
_.extendWith()It accepts customizer which is called in order to generate assigned value.
_.findKey()It access each value of the collection and returns the first element that passes a truth test.
_.findLastKey()It starts accessing each value from the last and returns the first element that passes a truth test.
_.forIn()It Iterates over keys and values of the given object and invokes iteratee function for each property.
_.forInRight() It iterates over properties of the object in the opposite order using iteratee function.
_.forOwn()It iterates over the own keys of the given object and invoke iteratee for each property.
_.forOwnRight()It iterates over the own keys of the given object and invoke iteratee for each property in the opposite order.
_.functions()It creates an array of function property names from own enumerable properties of the given object.
_.functionsIn()It creates an array of function property names from own and inherited enumerable properties of the given object.
_.get()It is used to get the value at path of object.
_.has()It checks whether the path is a direct property of object or not.
_.hasIn()It checks whether the path is a direct or inherited property of object or not.
_.invert()It returns the copy of an object where the object key is converted into value and object value is converted into the key.
_.invertBy()The inverted object is generated from the results of running each element of object through iteratee.
_.invoke()It is invoked the method at path of object.
_.keys()It returns the list of all keys of the given object.
_.keysIn()It creates an array of the own and inherited enumerable property names of object.
_.mapKeys()It creates an object with the same values as the object.
_.mapValues()It creates a new mapped object with the same keys of the given object.
_.merge()It merges two or more objects starting with the left-most to the right-most to create a parent mapping object.
_.mergeWith()It uses a customizer function that is invoked to produce the merged values of the given destination and source properties.
_.omit()It returns a copy of object that composed of the own and inherited enumerable property paths that are not omitted.
_.omitBy()It returns a copy of object and inherited enumerable string keyed properties that predicate doesn’t return truthy for.
_.pick()It returns a copy of the object that is composed of the picked object properties.
.pickBy()It returns a copy of the object that composed of the object properties predicate returns truthy for.
_.result()It returns the resolved values.
_.set()It is used to set the value at path of object and returns a new set object.
_.setWith()It accepts customizer which is invoked to produce the objects of path.
_.toPairs()It creates an array of own enumerable string key-value pairs for an object.
_.toPairsIn()It creates an array of own and inherited enumerable string key-value pairs for an object.
_.transform()It transforms object to a new accumulator object.
_.unset()It removes the property at the path of the object.
_.update()It accepts updater to produce the value to set.
_.updateWith()It accepts a customizer function that is invoked to produce the objects of the path.
_.values()It returns the array of the own enumerable string keyed property values of the object.
_.valuesIn()It returns the array of the own and inherited enumerable string keyed property values of object.


Last Updated : 26 Jul, 2023
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