All Questions
Tagged with variable-assignment javascript
366 questions
-3
votes
2
answers
89
views
Can you assign an element's class list to a variable by clicking on the element?
The main question I have is: Is there a way to assign to a variable an element's class list by clicking on said element without directly referencing the element in the JavaScript.
Expanding on this, I'...
1
vote
1
answer
52
views
Sheets - Use a form to add data, but to a worksheet name based on the data input
As the title explains, I have created a workbook in Google Sheets. There is a worksheet labeled "Form" which be used to input data into one of 12 worksheets (the months of the year labelled ...
- 13
0
votes
2
answers
136
views
Why can I redeclare a variable of the same name as a function parameter within an if statement?
Below is a trivialized version of a solution I came across while trying to implement a version of the Jquery CSS function.
function CSS(prop, value) {
...
if (value === undefined) {
...
- 378
0
votes
1
answer
32
views
New values of outside variables from "click" event do not persist on the first attempt
I'm working on a to-do project where one can click a button to add a new to-do, or click on an existing card to edit that to-do. I decided to have both use the same form, but with a different "...
0
votes
1
answer
72
views
How to make this input form-validation check right? [duplicate]
I've got assignment to make this form in js/jquery. The code looks good on error side of things (coloring red forms and throwing errors) but it should color the input form in green for correct ...
0
votes
1
answer
78
views
JavaScript addEventListener calls function but fails to update global variable
Bear with me, as I am a novice.
I'm coding in JavaScript and using an .addEventListener on document.getElementById("texts") to track changes in an HTML dropdown. The .addEventListener calls ...
-1
votes
1
answer
68
views
dollar sign $ as an assignment operator for a value of string in vs code ( js ) does not work or highlighted [closed]
function sayHello (userName) {
console.log ('Hello ${userName}') ;
}
sayHello ('Mena') ;
function sayHello (userName) {
console.log ('Hello ${userName}') ;
}
sayHello ('mena') ;
// i ...
- 23
2
votes
1
answer
58
views
Difference between assignment and unpacking intto one array to another
I have this code in JavaScript what is the difference between the lines A and B ?
const arr1 = [1,2,3,4,5]
const arr2 = [...arr1]; // Line A
const arr2 = arr1; // Line B
I want to know is it ...
0
votes
0
answers
28
views
Strange assignment in Javascript [duplicate]
Good morning,
I've encountered a strange behavior of assignments in javascript. The behavior is replicable outside the specific project, here's how to trigger it:
function A_n(){
var u=100;
...
2
votes
0
answers
57
views
Why does assignment of an array value behave differently when the index is modified in the right? [duplicate]
I noticed that there are two different behaviors in the assignment of an array value, like arr[i] = ++i.
In C++
int arr[] = {0,0};
int i = 0;
arr[i] = ++i;
cout << arr[0] << ',' << ...
- 138
0
votes
1
answer
320
views
Identifier * has already been declared, script is an external script
I am in the process of creating an embed for instagram posts. However when using the script: https://www.instagram.com/embed.js I get the following errors in the browser:
Localhost Environment:
...
- 11
0
votes
2
answers
40
views
How can i link a specific array item from one list, to a corresponding array item from a different array list?
So i am creating a Star Wars inspired random quote generator on vscode which gives a random quote and also gives a real life scenario in which it could be used (advice), but i have encountered an ...
1
vote
2
answers
103
views
Expressions in my template literal don't get updated
I define the variable description as a template literal with an expression in it. When I then use description later in runScenario, the expression returns what money started as, not what it currently ...
- 15
-2
votes
1
answer
25
views
Why is the variable not defined?
I keep getting this error message: plate is not defined.
How do I fix this? And can I pls get an explanation why it doesn't work?
Sorry if this is really bad, it's my first time on stackoverflow.
...
0
votes
0
answers
261
views
Assign data returned from api to variable + javascript [duplicate]
I am working with an api in javascript to return some healthcare data to be analyzed and visualized. I created a function get_data() to access the data so it can be used elsewhere in the script:
...
- 884