create variable javascript with an input value

Question

I don't know if this can be do it, i have a input with a submit:

Variable JSON (data/data.links)
    <input type="text" id="newVarJson" value="data" onclick="verifica();"/><br>

and I need to put the value of that input as the name of a variable in javascript to create a json with that name, i thought on make that:

<script type="text/javascript">     

function verifica(){
    var document.getElementById(newVarJson).value={}
    data.value="asdf";
    alert(JSON.stringify(data));
}

</script>

As you see, the variable the input value = data, I don't know if this can be do it, so, can someone tell me any tips to make this, or it can't be do it?

Thanks!

quotes are important: .getElementById('newVarJson') ; also by assigning to value it is clearing the form value -- don't you want to read it instead? — Paul
– Paul, Commented Mar 28, 2014 at 9:53
that code it's not a child of a form, i don't use a form, only the tags input and the submit, it's a test that i need to implement into a project if it works Paul — jvillegas
– jvillegas, Commented Mar 28, 2014 at 9:57
I don't understand what " I need to put the value of that input as the name of a variable in javascript to create a json with that name" means. To create a string of json that represents a variable, you could use var myJsonString = JSON.stringify(myVar) — Paul
– Paul, Commented Mar 28, 2014 at 9:57
I meant, i have an input with the value = data, so can i assign that value as name of a variable on javascript? — jvillegas
– jvillegas, Commented Mar 28, 2014 at 10:00

naoxink · Accepted Answer · 2014-03-28 10:01:50Z

2

You can try this:

window[document.getElementById(newVarJson).value];

and your var name will be the value of that input.

Edit:

window[document.getElementById('newVarJson').value];

Working jsbin: http://jsbin.com/doparibu/1/edit

edited Mar 28, 2014 at 10:01

answered Mar 28, 2014 at 9:51

naoxink

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1 Comment

Paul Over a year ago

newVarJson should be a string, since it is the ID, so you should quote it. It is quoted in your jsbin.

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