All Questions
20
questions
0
votes
7
answers
140
views
JavaScript can I directly access to a property inside a property in the object?
In this object, I want to print out an array in the form of [userName, skills]. I know that these objects don't have indexes. Is it possible to detect the skills property and only print out the value ...
- 1
-1
votes
3
answers
647
views
How check if there is no duplicate values for a list of properties in an object in javascript
const arr = \["key1", "key2", "key3"\];
example 1 :
const obj = {key1 : "1", key2 : "2", key3 : "2", key4: "4", key5 : "5&...
- 19
0
votes
3
answers
2k
views
JavaScript bracket notation on object returning undefined on existing key
Summary: Unable to access object key value using bracket notation as the existing key is returned as undefined.
I have an array of users (constructed by parsing a CSV files and its columns):
let users ...
0
votes
1
answer
995
views
How do I access an object property/key in Java (Android) by string variable
EDIT: To clarify, I want to get the value of the property, not the name of the property. I know the name of the property but I need to access the property via a string containing the property name. I ...
- 11
0
votes
1
answer
54
views
Iterating through Objects of Objects Javascript?
I have this object structure that I want to iterate through to make a node of all the "properties." So I want to make nodes for the objects 1,2,5, and 8 but not for the arrays. I have this ...
- 73
0
votes
3
answers
28
views
Need help inputting properties into object variable
I want to make it so in the input box, when it is entered, the values are assigned to properties in the object variable. For example: If for the weight you input 180, the value of 180 is assigned to ...
- 47
1
vote
1
answer
34
views
Can someone please explain in plain english what is going on in a particular part of my code for objects?
although it is a very simple code, I would like to get a full understanding of what is happening in my condition:
let getFreqOn = function(string){
//set a variable for object
let object = {...
- 31
1
vote
1
answer
496
views
Access object property with variable and fallback to default property if non-existing
I'm new to the switch statement in Javascript. The cool thing about it is that it combines multiple if statements with a default result if all if's failed.
I'm a curious person and would like to know ...
- 2,143
2
votes
3
answers
319
views
Weird behaviour when using objects as keys in Javascript
Consider the following snippet:
var a = {amount: 300}
var b = {amount: 250}
var c = {[a] : 'bla', [b]: 'blabla'};
console.log(c[a]);
It prints:
blabla
But should it not print:
bla
What is going ...
- 774
-1
votes
3
answers
2k
views
Is there a way to use square brackets "[]" in JavaScript object arrays?
Is there a way to use square brackets "[]" in JavaScript object arrays? There is a square bracket in the key I am trying to make and it is causing an error to fire.
For instance, I have an array of ...
0
votes
1
answer
119
views
How to reference an Object based on a Key Value?
I have an array of objects: [obj1, obj2, obj3]
obj1 = {id:1,name:First}
obj2 = {id:2,name:Second}
...
But the object's array indexes are constantly changing. How else can I reference a specific ...
- 31
3
votes
2
answers
129
views
JavaScript: Dynamically generated object key [duplicate]
const cars = [
{
'id': 'truck',
'defaultCategory': 'vehicle'
}
]
const output = []
Object.keys(cars).map((car) => {
output.push({
foo: cars[car].defaultCategory
})
})
...
- 3,093
0
votes
2
answers
40
views
I want to order items returned from an object based on the property key value and then assign a ranking to each item in the interface (1,2,3...etc)
Newb here with a basic question. Here is my object:
{TestOne: 12, TestTwo: 6, TestThree: 4, TestFour: 2}
I've looped through it using a for-in loop and grabbed the properties and displayed it in my ...
- 53
0
votes
1
answer
59
views
Using one function to update an object value used by another function using jquery?
I am writing a quiz app that references an object with values, everything is working well, even though this is beginner code. Specifically, I want the first question to be replaced by the second ...
- 69
-1
votes
2
answers
2k
views
Return JSON properties
I am trying to return my JSON object's properties. My JSON file object looks like:
{ Products:
{
'Cars': { tableFields: [Object] },
'Planes': { tableFields: [Object] }
}
}
I am ...
- 13.6k