I can’t find any info regarding a situation like this, I’m passing p1 props from my App component to state of my Child1 component. When I call the buttonHandler method to see the state of s1 I get this error: Class component “Child1” App.js Answer With class instances, you need to bind…
Tag: javascript
Format phone number in Javascript
I need to format phone number for example by replace(): From: +48 XX XXX XX XX where X is a number. Example: +48 12 345 67 89 To: +48 XXX XXX XXX Example: +48 123 456 789 Edit: My work: First, I tried to remove the spaces in string: phone.replace(‘ ‘, ”);: Before: +48 12 312 31 23 After: +48…
How can i reduce to a more concise form my JS array
There is the following piece of code that I would like to reduce to a more concise form. I think I did not make the best decision at all. Simultaneously getting rid of the bug, which consists in limiting the operation of the program from arrays prescribed in advance in the code. Please tell me how it can be d…
Get coordinates of the points in an ellipse in HTML5 Canvas
In HTML5 Canvas, I know I can draw an ellipse with CanvasRenderingContext2D.ellipse(), but how can I draw some points on the ellipse path? I can draw points on a circular path using the following codes: p.s. ignore the colors and the dot at the center. But how to do this with an ellipse? I don’t want to…
Browser sending request for already buffered video data
Problem As the title says, I’m seeing an issue where the browser (when seeking through a video) is constantly making requests for ranges of bytes it should already have. Code I’ve provided a minimal code sample; to replicate the issue, whip around the current time control on the video and look at …
Crating a type of array of multiple objects
I want to create a type for an array of objects. The array of objects can look like this: the type i am trying to use is: Then i want to use the type like this: but i get this error: I can do something like this: but lets say my array of object will have 100 objects in the
Three js hdr turns off but never back on
I’m trying to turn on and off a hdr map in three js. This is how I create it }) So far so good. I then add it to the gui: Finally, I try to specify the on/off logic, but when I read the console logs, it’s always printing ‘false’ Note that the hdr loads correctly, turns off correctly wh…
Clear command is not deleting messages correctly discord.js v13
I want to make a bulk-clear command for my bot. I tried this code: But it doesn’t work correctly. when I run !clear 3, It deletes 2 messages. Notes: I am using discord.js v13 and node.js v16 Answer Your bot also counts your command as a message, and removes it. That’s why it only removes 2 other m…
JavaScript not in list of Selenium Script Languages inside of JMeter
I am wondering if anyone has seen this issue in JMeter where JavaScript is not an option in the Script Language drop-down of the Selenium WebDriver? The only options available to me are the ones on the screenshot below. I have tried with Selenium 3.3 and 3.0 and the drop-down does not change and this is on Ap…
how to avoid the updated value to be binded to other array using angular13
i am working on angular13, here i have button to move items from left to right. now once the item is moved from left to right and if i edit the same item under right side, the edited value is updated in left side array as well. HTML: TS: DEMO Answer You are pushing the same instance into both arrays.