Filtering array of objects with lodash based on property value

Question

We have an array of objects as such  var myArr      name   john   age  23                  name   john   age  43                  name   jim   age  101                  name   bob   age  67       how do I get the list of objects from myArr where name is john with lodash

User · Answer

lodash also has a remove method  var myArr           name   john   age  23          name   john   age  43          name   jim   age  101          name   bob   age  67       var onlyJohn   myArr remove  person   gt    return person name     john

User · Answer

Use lodash   filter method    filter collection   predicate   identity    Iterates over elements of collection  returning an array of all elements predicate returns truthy for  The predicate is invoked with three arguments   value  index key  collection   with predicate as custom function    filter myArr  function o         return o name     john          with predicate as part of filtered object  the   matches iteratee shorthand    filter myArr   name   john      with predicate as  key  value  array  the   matchesProperty iteratee shorthand     filter myArr    name    John      Docs reference  https   lodash com docs 4 17 4 filter

User · Answer

Filter by name  age    also  you can use the map function      difference between map and filter   1  map - The map   method creates a new array with the results of calling a function for every array element  The map method allows items in an array to be manipulated to the user   s preference  returning the conclusion of the chosen manipulation in an entirely new array  For example  consider the following array   2  filter - The filter   method creates an array filled with all array elements that pass a test implemented by the provided function  The filter method is well suited for particular instances where the user must identify certain items in an array that share a common characteristic  For example  consider the following array   const users           name   john   age  23          name   john   age 43          name   jim   age  101          name   bob   age  67       const user     filter users   name   jim   age  101    console log user

User · Answer

With lodash   const myArr      name   john   age  23                    name   john   age  43                    name   jim   age  101                    name   bob   age  67      const johnArr     filter myArr  person   gt  person name      john    console log johnArr      Vanilla JavaScript   const myArr      name   john   age  23                    name   john   age  43                    name   jim   age  101                    name   bob   age  67      const johnArr   myArr filter person   gt  person name      john    console log johnArr

User · Answer

x000D   x000D  let myArr     x000D        name   john   age  23    x000D        name   john   age  43    x000D        name   jim   age  101    x000D        name   bob   age  67    x000D     x000D   x000D  let list     filter myArr  item   gt  item name      john    x000D   x000D   x000D

User · Answer

Lodash has a  map  function that works just like jQuerys    x000D   x000D  var myArr       name   john   age 23    x000D                  name   john   age 43    x000D                  name   jimi   age 10    x000D                  name   bobi   age 67     x000D   x000D  var johns     map myArr  function o    x000D      if  o name     john   return o  x000D      x000D   x000D     Remove undefines from the array x000D  johns     without johns  undefined  x000D   x000D   x000D

User · Answer

x000D   x000D  let myArr     x000D        name   john   age  23    x000D        name   john   age  43    x000D        name   jim   age  101    x000D        name   bob   age  67    x000D     x000D   x000D     this will return old object  myArr  with items named  john  x000D  let list     filter myArr  item   gt  item name      jhon    x000D   x000D      this will return new object referenc  new Object  with items named  john   x000D  let list     map myArr  item   gt  item name      jhon   filter item   gt  item name   x000D   x000D   x000D

[javascript] Filtering array of objects with lodash based on property value

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