How to check whether a value exists in a array in Jquery

Question

Here is the script i wrote to read each character from a textbox and checking whether that character exists in a array but this isn't working correctly as i'm getting a -1 for any character i enter into the textbox despite of whether its there or not in the array i'm searching that value. Can anyone please help

$(document).ready(function()
{
    var arr1;
    var arr2= $("#myValue").val().split("");

    $("#TextBox1").keyup(function ()
    { 
        arr1 = $("#TextBox1").val().split("");
    });

    $("#btn").click(function ()
    { 
        jQuery.each(arr1, function(i, val)
        {
            $("#xyz").append(this + "<br/>");
            $("#xyz").append(jQuery.inArray(this, arr2)+"<br/>");
        });
    });
});

Is this running on an ASP.NET page by any chance? – rusty May 23 '11 at 18:37 — rusty, May 23 '11 at 18:37
@ _rusty : Yes its running on ASP.NET – Tharindu Liyanage May 23 '11 at 18:38 — Tharindu Liyanage, May 23 '11 at 18:38

score 0 · Answer 1 · answered May 23 '11 at 18:40

0

Since this is ASP.NET, have you double checked that #TextBox1 is the actual final element ID? It might end up be something like #ctl102_TextBox1

answered May 23 '11 at 18:40

rusty

2,771
1
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yes i did the id is correct, in fact if i change the code to display the items what i'm searching for, its display the correct items. Thanks..! – Tharindu Liyanage May 23 '11 at 18:48

score 0 · Accepted Answer · answered May 23 '11 at 20:23

0

the problem is in this line:

$("#xyz").append(jQuery.inArray(this, arr2)+"<br/>");

change it to:

$("#xyz").append(jQuery.inArray(this.toString(), arr2)+"<br/>");

because this is an object

answered May 23 '11 at 20:23

roberkules

6,557
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thanks bro really helped me i wish i checked this page 38mins ago.. but appreciate your help. – Tharindu Liyanage May 23 '11 at 21:03
this is wat i found, perhaps u no this already but wanted to share for someone who might be looking for... $("#xyz").append(jQuery.inArray(arr1[i], arr2)); – Tharindu Liyanage May 23 '11 at 21:06
or to make it even easier jQuery.inArray(val, arr2) :) – roberkules May 23 '11 at 21:11

How to check whether a value exists in a array in Jquery

2 Answers2