All Questions
Tagged with object properties
1,192
questions
7516
votes
39
answers
3.3m
views
How do I remove a property from a JavaScript object?
Given an object:
let myObject = {
"ircEvent": "PRIVMSG",
"method": "newURI",
"regex": "^http://.*"
};
How do I remove the property ...
- 97.7k
1028
votes
46
answers
1.5m
views
Sorting object property by values
If I have a JavaScript object such as:
var list = {
"you": 100,
"me": 75,
"foo": 116,
"bar": 15
};
Is there a way to sort the properties based on value? So that I end up with
list = {
"...
- 17.5k
977
votes
21
answers
662k
views
Accessing an object property with a dynamically-computed name
I'm trying to access a property of an object using a dynamic name. Is this possible?
const something = { bar: "Foobar!" };
const foo = 'bar';
something.foo; // The idea is to access something.bar, ...
- 10.8k
877
votes
64
answers
413k
views
Test for existence of nested JavaScript object key
If I have a reference to an object:
var test = {};
that will potentially (but not immediately) have nested objects, something like:
{level1: {level2: {level3: "level3"}}};
What is the best way to ...
- 321k
454
votes
9
answers
506k
views
How to create an object property from a variable value in JavaScript? [duplicate]
I want to add a new property to 'myObj', name it 'string1' and give it a value of 'string2', but when I do it it returns 'undefined:
var myObj = new Object;
var a = 'string1';
var b = 'string2';
...
- 4,563
441
votes
12
answers
440k
views
Remove array element based on object property
I have an array of objects like so:
var myArray = [
{field: 'id', operator: 'eq', value: id},
{field: 'cStatus', operator: 'eq', value: cStatus},
{field: 'money', operator: 'eq', value: ...
- 23.9k
331
votes
6
answers
387k
views
Is there a “not in” operator in JavaScript for checking object properties?
Is there any sort of "not in" operator in JavaScript to check if a property does not exist in an object? I couldn’t find anything about this around Google or Stack Overflow. Here’s a small snippet of ...
- 10.7k
213
votes
13
answers
486k
views
Getting the object's property name [duplicate]
I was wondering if there was any way in JavaScript to loop through an object like so.
for(var i in myObject) {
// ...
}
But get the name of each property like this.
for(var i in myObject) {
...
- 40.9k
160
votes
5
answers
157k
views
How to access property of anonymous type in C#?
I have this:
List<object> nodes = new List<object>();
nodes.Add(
new {
Checked = false,
depth = 1,
id = "div_" + d.Id
});
... and I'm wondering if I can ...
- 8,211
135
votes
11
answers
28k
views
Is it possible to get the non-enumerable inherited property names of an object?
In JavaScript we have a few ways of getting the properties of an object, depending on what we want to get.
1) Object.keys(), which returns all own, enumerable properties of an object, an ECMA5 ...
- 2,754
130
votes
7
answers
456k
views
How to set a Javascript object values dynamically?
It's difficult to explain the case by words, let me give an example:
var myObj = {
'name': 'Umut',
'age' : 34
};
var prop = 'name';
var value = 'Onur';
myObj[name] = value; // This does not ...
- 2,103
129
votes
8
answers
245k
views
How do I access properties of a javascript object if I don't know the names?
Say you have a javascript object like this:
var data = { foo: 'bar', baz: 'quux' };
You can access the properties by the property name:
var foo = data.foo;
var baz = data["baz"];
But is it ...
- 35.4k
129
votes
2
answers
25k
views
Is it safe to delete an object property while iterating over them?
When iterating over an object's properties, is it safe to delete them while in a for-in loop?
For example:
for (var key in obj) {
if (!obj.hasOwnProperty(key)) continue;
if (shouldDelete(...
- 22.4k
128
votes
20
answers
98k
views
Access JavaScript property case-insensitively?
Assume I have an object:
var obj = {
foo:"bar",
fizz:"buzz"
};
I need to access a property of that object dynamically like so:
var objSetter = function(prop,val){
obj[prop] = val;
}
No ...
- 23.9k
122
votes
12
answers
43k
views
Calling closure assigned to object property directly
I would like to be able to call a closure that I assign to an object's property directly without reassigning the closure to a variable and then calling it. Is this possible?
The code below doesn't ...
- 43.8k