How to set a unique value in an array using jquery

Question

I want to push a unique value in an array and I'm using jquery

var otNotesTimeIntrArray = new Array();
$("#otNoteFluids").on('change',function() {
   var otNotesTimeIntr = $("#otNotesTimeIntr").val();
   otNotesTimeIntrArray.push(otNotesTimeIntr);
 });

otNotesTimeIntr consists of Time intervals. Example: 10:15AM, 10:45AM...

If 10:15AM already exist, I don't want it to push into array..

void · Accepted Answer · 2018-02-01 05:29:52Z

5

Use can use .indexOf to check whether a value already exists in an array or not

var otNotesTimeIntrArray = new Array();
$("#otNoteFluids").on('change',function() {
   var otNotesTimeIntr = $("#otNotesTimeIntr").val();

   //Use .indexOf before pusing into array
   if(otNotesTimeIntrArray.indexOf(otNotesTimeIntr)==-1)
      otNotesTimeIntrArray.push(otNotesTimeIntr);

});

answered Feb 1, 2018 at 5:29

void

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Hassan Imam · Accepted Answer · 2018-02-01 05:30:55Z

3

You can use array#includes to check if a value exists in an array.

var otNotesTimeIntrArray = new Array();
$("#otNoteFluids").on('change',function() {
   var otNotesTimeIntr = $("#otNotesTimeIntr").val();
   if(!otNotesTimeIntrArray.includes(otNotesTimeIntr))
     otNotesTimeIntrArray.push(otNotesTimeIntr);
 });

answered Feb 1, 2018 at 5:30

Hassan Imam

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