lodash remove object from array code example

Example 1: lodash remove element from list

var colors = ["red","blue","green","green"];
var greens = _.remove(colors, function(c) {
    return (c === "green"); //remove if color is green
});
//colors is now ["red","blue"]
//greens is now ["green","green"]

Example 2: how to delete an element of an array in javascript

//you can use two functions depending of what you want to do:

let animals1 = ["dog", "cat", "mouse"]
delete animals1[1]
/*this deletes all the information inside "cat" but the element still exists
so now you'll have this:*/
console.log(animals1)//animals1 = ["dog", undefined, "mouse"]

//if you want to delete it completely, you have to use array.splice:

let animals2 = ["dog", "cat", "mouse"]
animals2.splice(1, 1)
/*the first number means the position from which you want to start to delete
and the second is how much elements will be deleted*/
console.log(animals2)//animals2 = ["dog", "mouse"]
/*Now you don't have undefined
If you did this:*/
let animals3 = ["dog", "cat", "mouse"]
animals3.splice(0, 2)//you'll have this:
console.log(animals3)//animals 3 = "mouse"
/*This happens because I put a 2 in the second parameter so it deleted
two elements from position 0
Try copying this code in your console and whatch*/

Example 3: remove element from array lodash

var arr = [1, 2, 3, 3, 4, 5];
_.remove(arr, function(e) {
    return e === 3;
});
console.log(arr);

Example 4: lodash remove not in array

var a = [
  {id: 1, name: 'A'},
  {id: 2, name: 'B'},
  {id: 3,  name: 'C'},
  {id: 4, name: 'D'}
];
var removeItem = [1,2];
removeItem.forEach(function(id){
   var itemIndex = a.findIndex(i => i.id == id);
   a.splice(itemIndex,1);
});
console.log(a);

Example 5: remove empty object from array lodash

var myArrayFiltered = myArray.filter((ele) => {
  return ele.constructor === Object && Object.keys(ele).length > 0
});