Linked Questions
56 questions linked to/from How to conditionally add a member to an object?
1
vote
0
answers
253
views
javascript conditional object literal properties? [duplicate]
Here is some source code from jquery, namely from the function jQuery.speed that deals with animations:
jQuery.speed = function( speed, easing, fn ) {
var opt = speed && typeof speed === "...
- 12.2k
0
votes
1
answer
179
views
Omit object's key-value if value == null [duplicate]
Having typescript code presented below, which creates new record in the Firestore database, is it possible to omit (by writing one line of inline code) one of the key-value pair if the value equals ...
- 1,795
0
votes
1
answer
80
views
If statement within return [duplicate]
How do I add an if statement in a return statement of this sort:
return {
ID: select('core/editor').getEditedPostAttribute('featured_media'),
if (ID) {
media: select('core').getMedia( ...
- 7,164
1
vote
4
answers
90
views
How do I selectively define/declare keys for an objects in JavaScript? [duplicate]
Given an Object s as
s = {
a:1,
b:2
}
I can define a new object t with fields depending on the contents of s,
say something like
t = {
d: s.a ? 1 : 2
}
then the field d value depends on ...
- 1,482
0
votes
0
answers
161
views
Javascript optional key in an object [duplicate]
I have looked for an answer to this and Haven't quite been able to find it. Is it possible to have an object that includes/excludes keys dynamically?
Consider these two examples:
Example 1
const ...
- 1,818
0
votes
2
answers
105
views
Simple ternary operator [duplicate]
var args = {VehicleManipulation:[{
'a:Amount':[Amount],
'a:Comment':[Comment],
'a:Date':[date],
'a:...
- 757
0
votes
0
answers
48
views
How to add a key-value pair by conditional? [duplicate]
Consider the following example:
const initObject = { a: 2, b: 3, c: 4 };
let shouldChangeB = false;
const newB = 4
const newObject = {
...initObject,
//shouldChangeB && b: newB - ...
- 3,755
0
votes
0
answers
41
views
Is there a better way to compare two objects that have different keys than what I have wrote here? [duplicate]
Basically I'm trying to compare two objects in javascript that have different key names, but I want to match the values of the the objectToSync with the values of the mainObject. Some of the values ...
- 63
0
votes
0
answers
40
views
Omiting undefined computed property in JS object [duplicate]
This is the default behavior of computed properties in JS:
const yourName = 'John';
const resultObject = {
[yourName]: 'Glad you're here, let's celebrate!'
}
The resultObject will be computed to ...
- 1,509
1
vote
0
answers
19
views
Sending in a prop object where some are dependant on a boolean value [duplicate]
I have the following component taking in the prop data.
<Button
data={booleanValue && {
d: 4,
// another 8 key/values
}}
/>
So data value only gets passed in if ...
- 1,836
1
vote
0
answers
18
views
javascript - how to return Json conditionally [duplicate]
Is it possible to change from below
if(true){
return {
...baseData,
email: profile.email,
permissions: "admin",
};
}else{
return {
...baseData,
...
- 6,665
0
votes
0
answers
8
views
typescript: sending an object field conditionally [duplicate]
I am trying to have an optional field on object. If the state variable equals active, I want to have data.fields equal to show. If state does not equal active, I don't want terms to even be part of ...
user15909643
3823
votes
83
answers
2.5m
views
How do I correctly clone a JavaScript object? [duplicate]
I have an object x. I'd like to copy it as object y, such that changes to y do not modify x. I realized that copying objects derived from built-in JavaScript objects will result in extra, unwanted ...
- 40.6k
966
votes
22
answers
1.0m
views
Is it possible to add dynamically named properties to JavaScript object?
In JavaScript, I've created an object like so:
var data = {
'PropertyA': 1,
'PropertyB': 2,
'PropertyC': 3
};
Is it possible to add further properties to this object after its initial ...
- 13k
120
votes
16
answers
203k
views
Passing props to Material UI styles
Given the Card code as in here. How can I update the card style or any material UI style as from:
const styles = theme => ({
card: {
minWidth: 275,
},
To such follows:
const styles = theme =&...
- 1,737