Remove Array Value By index in jquery

Question

Array  var arr     abc   def   ghi     I want to remove above array value  def  by using index

User · Answer

Find the element in array and get its position
Remove using the position

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var array = new Array();_x000D_
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array.push('123');_x000D_
array.push('456');_x000D_
array.push('789');_x000D_
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var _searchedIndex = $.inArray('456',array);_x000D_
alert(_searchedIndex );_x000D_
if(_searchedIndex >= 0){_x000D_
  array.splice(_searchedIndex,1);_x000D_
  alert(array );_x000D_
}

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<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>

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inArray() - helps you to find the position.
splice() - helps you to remove the element in that position.

User · Answer

Your example code is wrong and will throw a SyntaxError  You seem to have confused the syntax of creating an object Object with creating an Array   The correct syntax would be  var arr      abc    def    ghi      To remove an item from the array  based on its value  use the splice method   arr splice arr indexOf  def    1     To remove it by index  just refer directly to it   arr splice 1  1

User · Answer

Use the splice method   ArrayName splice indexValueOfArray 1     This removes 1 item from the array starting at indexValueOfArray

User · Answer

Your syntax is incorrect  you should either specify a hash   hash    abc  true  def  true  ghi  true     Or an array   arr     abc   def   ghi      You can effectively remove an item from a hash by simply setting it to null   hash  def     null  hash def   null    Or removing it entirely   delete hash def    To remove an item from an array you have to iterate through each item and find the one you want  there may be duplicates   You could use array searching and splicing methods   arr splice arr indexOf  def    1     This finds the first index of  def  and then removes it from the array with splice  However I would recommend  filter   because it gives you more control   arr filter function item    return item      def         This will create a new array with only elements that are not  def    It is important to note that arr filter   will return a new array  while arr splice will modify the original array and return the removed elements  These can both be useful  depending on what you want to do with the items

User · Answer

delete arr 1    Try this out  it should work if you have an array like var arr

[jquery] Remove Array Value By index in jquery

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