This question already has answers here:
Accessing an object property with a dynamically-computed name
(19 answers)
Closed 3 years ago.
let property = $(this).val();
let property_name = this.dataset.property;
headObject[selected].property_name = property;
});
property_name is a variable not key. Are there anyway to handle this? Thank you in advance!
I can see you are uing jQuery.
headObject[selected].attr( property_name, property ); //Where headObject[selected] is a jQuery object
Related
This question already has answers here:
Accessing an object property with a dynamically-computed name
(19 answers)
JavaScript object: access variable property by name as string [duplicate]
(3 answers)
Closed 4 years ago.
In the following code, I am trying to set backgroundColor via a variable prop. I would like to know the reason as to why div.style.prop does not work.
var div = document.getElementById('test')
var prop = 'backgroundColor'
div.innerHTML = 'This is some text'
div.style.prop = 'red'
This question already has answers here:
Accessing an object property with a dynamically-computed name
(19 answers)
Access JSON or JS property using string
(4 answers)
Closed 6 years ago.
I can do var foobar = foo.barto access the bar variable.
How would I do this if I had an arbitrary string that told me what element I needed to access. foo."bar" doesn't work.
I think
foo["bar"]
is the syntax you need
This question already has answers here:
Accessing an object property with a dynamically-computed name
(19 answers)
Closed 6 years ago.
I have this code :
var dynamicVarName = id;
var percentage = res.parkeren[0].dynamicVarName.percentage;
DynamicvarName can have different values, but when i call this in the var percentage it's not working.
How can i get the dynamic variable in the array / object?
You need the bracket notation for the access:
var dynamicVarName = 'id';
var percentage = res.parkeren[0][dynamicVarName].percentage
This question already has answers here:
Accessing an object property with a dynamically-computed name
(19 answers)
Closed 7 years ago.
I have a popup form and need to return a value to the master form. The first statement works fine, but when I try to put the field name (textAlert) to a variable, I cannot get it to work. I tried all kinds of syntax.
Please help. Thanks.
function DoReturnValue()
{
opener.MasterForm.textAlert.value = "Hello"; // WORKS
/* DOES NOT WORK
var theField = "textAlert";
opener.MasterForm(theField).value = "Haloha";
opener.document.MasterForm.getElementById(theField).value = "Haloha";
*/
}
To access properties dynamically with a string variable as a name, use square-bracket notation:
opener.MasterForm[theField].value = "Haloha";
This question already has answers here:
Accessing an object property with a dynamically-computed name
(19 answers)
Closed 8 years ago.
I want to pass a variable into a variable
This is what I want
uk.objects.ARG
I have
var d= ARG
how can I get uk.objects.ARG?
I tried
uk.objects.d
, javascript stores it as the string, not a variable
What should I do in order to make it as a variable ?
I think what you are looking for is perhaps:
var d = "ARG";
uk.objects[d];
You can access JavaScript objects' properties also with the bracket notation:
object[property] = value;
The same works for reading. So in your case you could do the following:
var value = uk.objects[d]