Questions tagged [javascript-objects]
Use this tag for questions related to JavaScript objects.
javascript-objects
7,204
questions
0
votes
1
answer
29
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Why is the below piece of code giving error when I add console log line and working fine if I remove it?
The code below works fine if I remove the console log line but not with it
function gcd(a, b) {
while (b !== 0) {
console.log(a,b)
[a, b] = [b, a % b];
}
return a;
}
...
0
votes
0
answers
18
views
Prototype is showing multiple times [duplicate]
I have implemented inheritance as below:
class Animal {
constructor(name) {
this.name = name;
}
speak() {
console.log(${this.name} is making noise.)...
- 15.1k
0
votes
0
answers
28
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Having error in javascript while creating pdf compressor tool
I am creating a PDF compressor tool via javascript. My pdf is uploaded, processed, and downloaded successfully. It shows the difference between the original size and the compressed size. Everything is ...
- 11
1
vote
2
answers
82
views
Why is reading the length property of a string in JavaScript O(1) and not O(n)
Strings are primitives, meaning they don't actually have methods or properties associated with them. According to MDN
In contexts where a method is to be invoked on a primitive string or a property ...
0
votes
1
answer
40
views
How do I access dynamically created objects and their properties in JavaScript?
If I write a function that creates a new person and attach it to an onClick event on a button, how can I access the data that was entered without a variable name?
When a user presses the button, the ...
- 309
-2
votes
0
answers
84
views
polyfill.io How can I know if My app is using it [duplicate]
I received a Google security notificación about The use of polyfill.io in The asset where I use Google Javascript API. But How can I know if i make a call to that library. Checking The app I don't ...
1
vote
2
answers
91
views
Destructuring an array of variables from an unknown object [closed]
I just have a question if it is possible to destructure an object using an array of variables. I know it is possible if you know the name of the Object Keys but if you do not know the keys of the ...
- 11
0
votes
0
answers
12
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property accessory containing everything in javascript [duplicate]
I have this kind of javascript property.
currencies.EUR.name: "Euro"
Between dot notation EUR could be something else like USD. With javascript how could I change that to something like ...
- 1
1
vote
0
answers
29
views
proxy for 3d array, knowing the two indexes of array inside the handler function
I have this JavaScript Proxy code which I want to trigger the set handler that can tell me the first and second keys.
This means that when I try to set globalVar.a.b = "55b" only the line ...
- 31
0
votes
0
answers
13
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How can I call a method within the same object literal where it's defined in JavaScript? [duplicate]
const objTest = {
testFunctionToDoubleAValue: (testParameter) => testParameter * 2,
testValue: 1,
testValueDoubled: testFunctionToDoubleAValue(1),
}
I tried to access a function inside the ...
0
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0
answers
33
views
Displaying the movement of a 3D model with data from an ESP32 gyroscope
I'm having a problem showing the movement of my ESP32 using the three.js library. The code reads the data generated by the gyroscope and implements it to the 3D model. It is not fluid and even the ...
1
vote
0
answers
16
views
Why does the name of a property change what access method works?
I have an object named facility
facility = {
facility_id: 495867,
facility_name: "4 Pig farms Brookvale",
registered_business_name: "BROOKVALE FARMS COMPANY PTY LTD",
...
0
votes
4
answers
57
views
get total of empty values in an object
please I need help with this
const obj = {a="", b="good", c=false, d="", e="excellent"}
I just want to know total empty and false. where my answer is suppose ...
- 51
0
votes
1
answer
46
views
Inserting Javascript array elements into another array with ternary operator
I have an array of objects where each object defines a field in a React form. I want to display different sequence of fields depending on a boolean state. This means that I need to insert either one ...
- 98
0
votes
2
answers
53
views
How do I check if a the mouse has touched a Javascript object that is randomly generated?
I am attempting to create a game where objects (currently circles) are randomly generated within a canvas, and the objects and their positions (plus other info) are stored within an array.
The objects ...
- 1