Question

Possible Duplicate:
How to find index of object in a JavaScript array with jQuery

I need to find value of input entered if already exists in .data() function.

I am trying this way.

jQuery

var array = $("form[name=update]").data("values", {"v1": "value1", "v2": "value2", "v3": "value3", "v4": "value4", "v5": "value5"});

if ($.inArray("value1", array) > -1){alert("duplicate value")}

But it does nothing.

Please see and suggest any possible way to do this.

Thanks.

Answer 1

Here

grep (which does not do objects) did not work for me either.

Here is a $.each version

DEMO

$(function() {
  $("form[name=update]").data("values", {"v1": "value11", "v2": "value2", "v3": "value3", "v4": "value4", "v5": "value5"});
  $(".but").on("click",function(e) {
    var fData = $("form[name=update]").data("values");
    var val = $(this).val();
      console.log(fData);
    $.each(fData, function(n,i) { 
        console.log("!!!",n,i)
      if (i===val) {
        alert("duplicate value");
        return false;
      }    
    })  
    e.preventDefault()  
  });
});    

---

This is now I had a look, the same method as danronmoon’s solution

DEMO

$(function() {
  $("form[name=update]").data("values", {"v1": "value11", "v2": "value2", "v3": "value3", "v4": "value4", "v5": "value5"});
  $(".but").on("click",function(e) {
    var fData = $("form[name=update]").data("values");
    var val = $(this).val();
      console.log(fData);
    for (var o in fData) { 
        console.log("!!!",o,fData[o])
      if (fData[o]===val) {
        alert("duplicate value");
        break;
      }    
    }  
    e.preventDefault()  
  });
});