passing function variable value to new variable in javascript

Question

I am trying to pass value of xyz from function to a new var abc, but its not working. I tried like abc="'"+xyz+"'"; (Not working) If I try like abc='anything'; it works and i can use abc value to new function in document.ready function. I want dynamically generated value of xyz, for abc with single quotes. With all your suggestion I am updating the code, i tried all the way... but dont know why abc is not catching the value of xyz or newcityval(); Also I have one line script above the code, where default value of abc is specified. Now when city value changes city_val gets updated and same i check using alert function. Also for abc if i put any value manually like abc='anything'; and alert it work fine. But using all the suggesstions its not working. I also declared global vars for both xyz and abc. updated code

<script type='text/javascript'>abc = 'any value';</script>
<script type='text/javascript'>
var xyz;
var abc;
function newcityval(){  
    xyz = $("#city").val();
    document.getElementById('city_val').value=xyz;
    return alert("'"+xyz+"'");

}

abc=newcityval();
if(abc!='')
{
alert("value is "+abc);
}
else
{
    alert('No value');
}

</script>

Thanks

abc="'"+xyz+"'"; isn't working because xyz hasn't been declared in that scope. Try: abc=newcityval(); I'm guessing that is more what you want. — forgivenson
– forgivenson, Commented Aug 4, 2014 at 11:50

Developer · Accepted Answer · 2014-08-04 13:39:38Z

1

If you want to use the returned value of your function use:

abc = newcityval();

In abc="'"+xyz+"'"; the xyz is an undefined variable. because you define your xyz variable inside your function.

Update:

set script like this:

<script type='text/javascript'>
    function newcityval(){
        xyz = $("#city").val();
        document.getElementById('city_val').value=xyz;
        return "'"+xyz+"'";
    }

    function run()
    {
        abc=newcityval();
        if(abc!='')
        {
            alert("value is "+abc);
        }
        else
        {
            alert('No value');
        }
    }
</script>

HTML code:

<input id="city" />
<input id="city_val" />
<button onclick="run()">do</button>

edited Aug 4, 2014 at 13:39

answered Aug 4, 2014 at 11:55

Developer

6305 silver badges13 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

ZiaulHaque Over a year ago

Thanks, your code helped me to update my code with some changes and things are working fine.

Upperstage · Accepted Answer · 2014-08-04 11:53:27Z

1

Try abc = "'" + newcityval() + "'"

You are declaring xyz local to the newcityval function so it is unavailable outside.

answered Aug 4, 2014 at 11:53

Upperstage

3,7678 gold badges47 silver badges69 bronze badges

Comments

Yair Tavor · Accepted Answer · 2014-08-04 11:51:33Z

0

you need to type

var abc = newcityval();

xyz is a variable inside the scope of newcityval, which means it's not available when you are trying to assign it to abc.

answered Aug 4, 2014 at 11:51

Yair Tavor

2,5381 gold badge23 silver badges16 bronze badges

Collectives™ on Stack Overflow

passing function variable value to new variable in javascript

3 Answers 3

1 Comment

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related