I commented out the return sum, on purpose, because it does not work as expected. If I remove return sum, it returns the right average. But this is what I don’t understand: when it enters the if in the last index position, this return shows NaN. But why does it return NaN? Answer Let us assume the value…
Javascript Function Defining Performance on Browsers
Is there any browser performance difference between defining javascript functions before and after DOM loaded? I usually define functions after DOM loaded like this and some people use this way Theory-1: They say Example-1 is slower than Example-2 because Example-1 waited DOM to load then started to define fu…
How do I either: import all of the js files into html or figure out which js files I need to get collapse from bootstrap to work?
I installed bootstrap with npm and now I have a bunch of .js files but there is no “master” js file that I can import into html, unlike the css file that does have a master .css file. I was unable to get the collapse to work without a cdn with But It did work with: This is my collapse
Inserting text in the MenuBar of QML
These menus by default appear on the left side. I want to place some text on the left side before the menu starts appearing. How to push the menus to right in order to create space for the text in the menubar? I want the following: That text “AmplifyRemote” is appearing before the menu starts. How…
Is it more performant to mix types or to keep types?
I was wondering, with v8, when storing class attributes, is it more performant to use one variable with mixed types or one variable per type? Consider the following snippets (written in TypeScript for making the difference more clear): Afaik both should have advantages or defaults. Using one variable would ha…
Recursively Search in Array with a For Loop
I know there are better ways to search an array, but I really want to understand how to return when the value is found in a recursive call. Logging when found isn’t a problem, but I can’t seem to make this return true when found. The problem is basic. Fully search multi-dimensional array for a val…
Array manipulation with multiple conditions – Vue.js / JavaScript
In my Vue.js application I use a navigation drawer to display the different pages a user has access to. Pages are also only visible if the administrator has activated the related module. Therefore the unique moduleID is set for each page and children. The list is populated by filteredPages[]. This array is th…
Can’t perform a React state update on an unmounted component with fetch POST method
I get this warning when i use my fetch post method how can I cancel all subscriptions and asynchronous tasks in a useEffect cleanup function.With my Post methods. Warning: Can’t perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. T…
JS append elements
I am generating some <li> with JS into my list. This <li> consist from few elements, such as <div>, <section>, etc. And my question is. For now, I generate exact number of elements into the array and then I append these elements from that array. But I would like to know, if I am able t…
Drawing using SVG icon path [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 2 years ago. Improve this question I am new to SVGs. I wanna make an icon like the below image. How can I achieve this with svg…