Remove functionality in text Filed not working

Question

We are developing a PhoneGap app. We have 3 cases like this:

$("#dvData .quantity input").on('keyup', function() {
    var totalamount = 0;
    var discountAmount = 0;
    var LineAmount1 = 0;
    var vatAmount = 0;
    var FinalNetSales = 0;
    var qtyId = this.id;
    var qtyId1 = qtyId.substr(4);
    debugger;
    var sstextFieldvalue = $('#text' + qtyId1).val();

    alert(sstextFieldvalue);
    alert(sstextFieldvalue.length);

    if (sstextFieldvalue != "" || sstextFieldvalue != 0) {
        if (sstextFieldvalue > 20) {
            alert("Set1");
        } else {
            alert("FINE");
        }
    } 
    else {
        alert("REMOVE");
    }
});

When we enter more then 20 in text-field it's called first alert. If we enter a value in text-field it is called three alert. However, when we remove text-field value it's not call Second alert.

Please tell me what is wrong in my code.

Note: This code is working fine in browser but when we checked in my mobile devices it not working

score 0 · Answer 1 · edited May 23 '17 at 12:05

0

use else if(sstextFieldvalue.length == "") instead of else if(! sstextFieldvalue)

else if(sstextFieldvalue == "")

Ok, i found this: how to check if input field is empty, so you can test the length of sstextFieldvalue.

update Your problem is your test, you can try this, tested on mobile:

if(sstextFieldvalue!="" || sstextFieldvalue!=0){
    if(sstextFieldvalue.length>20){
        alert("Set1");
    } else {
        alert("FINE");
    }
} else {
    alert("REMOVE");
}

Explain

1.It test if sstextFieldvalue!="" || sstextFieldvalue!=0, if it's true, it test if sstextFieldvalue.length>20 and show alert("Set1"), else it shows alert("FINE");

into else, it means that the field is empty.

Hope it works for you as well as it works for me! :)

edited May 23 '17 at 12:05

Community

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answered May 19 '15 at 13:03

Radonirina Maminiaina

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shouldn't that evaluate to be false? – dm03514 May 19 '15 at 13:04
Yeah, but in his case, he should test if the field is empty or not! :) – Radonirina Maminiaina May 19 '15 at 13:06
@Radonirina Maminiaina else if(sstextFieldvalue == ""); this also working fine in web but when we check mobile it's not work for me – naresh koppera May 19 '15 at 13:09
so what happen if test the length of the field value? – Radonirina Maminiaina May 19 '15 at 13:16
@Radonirina Maminiaina yes we tried else if(sstextFieldvalue.length = 0); also but not working in mobile .it working in browser Please help me – naresh koppera May 19 '15 at 13:21
you did `if(sstextFieldvalue.length == 0);` or `if(sstextFieldvalue.length = 0);`? – Radonirina Maminiaina May 19 '15 at 13:22
@Radonirina Maminiaina sry we tried sstextFieldvalue.length == 0 not sstextFieldvalue.length = 0 – naresh koppera May 19 '15 at 13:30
@Radonirina Maminiaina thanks we will try as you said – naresh koppera May 19 '15 at 13:50
@Radonirina Maminiaina We tried as you said same line placed in my code but it's not working.it working fine in browser but when we used mobile we removed textField value using backspaces "REMOVE " alert not called – naresh koppera May 19 '15 at 13:56
what event you use? I use `keyup` on my test and it runs – Radonirina Maminiaina May 19 '15 at 13:57
@RadonirinaMaminiaina yes we used Keyup event so Please look my question once we add event – naresh koppera May 19 '15 at 14:03
You do `sstextFieldvalue>20` instead of `sstextFieldvalue.length>20`, and dicrease, for e.g 3, the number, so it will be ease to you to do the test. I tested on my phone and it works perfecty! :) – Radonirina Maminiaina May 19 '15 at 14:18

Remove functionality in text Filed not working

1 Answers1