I get the error Offset is outside the bounds of the DataView for the following code Here is the debug view in Chrome You can see that i is 47999 and the buffer size of my DataView is 48000. What am I missing here? Answer This is because an Int16Array has a 2 bytes per element. So its .length will
Tag: javascript
How to avoid google line chart annotation text cover each other?
I create a horizontal line chart with annotation,but annotation text will cover each other when two point too close,how can I avoid annotation cover each other?? here is my sample chart: thank you Answer thanks for @WhiteHat advice, finally i found i can create an empty series and shows the annotations:
Upload file to an IIS server with AJAX using HTML and JavaScript
I want to be able to upload an image file (.png, .jpg, etc..) to my web-server (running IIS Server with ASPX) using nothing but HTML and AJAX. Here’s the code: I’ve heard that enctype=”multipart/form-data” works, but clearly doesn’t in my case… What should I do in order for…
How to insert properties and functions inside ref?
How can I insert properties and functions inside a ref? Like this example: Then I want to use the propertie loading and the function onTest that way: How can I do that? Answer You cannot set ref on functional components because they don’t have an instance. You may not use the ref attribute on function c…
HttpOnly Cookies not found in Web Inspector
I am working on user authentication for a website built using the MERN stack and I have decided to use JWT tokens stored as HttpOnly cookies. The cookie was sent in a “Set-Cookie” field in response header when I used Postman to make the request but not in the Safari Web Inspector as shown in the i…
Switch between two external css files in react
I want to apply an option where user can switch between dark mode and light mode in the application. I have two sheets for the whole website. I have given the option but what do i have to do to switch between the two css files? I used this method and it is updating the link tag perfectly in the
How to delete all files in a firebase storage directory
I have a firebase storage path that looks like this. firebase.storage().ref(‘temp/test’) the “test” folder has about 25-50 files. I know there is not a way to delete the whole directory in firebase but Is there a way to iterate through all the files in a directory and deleting them one…
How do I show a selected button in a row by changing CSS in an HTML site?
I have a div of buttons in line and I want the user to be able to see when they selected a button by changing the CSS and it only going back to its old state when they select another button. Is this possible? Answer Find all the buttons and add event listener to execute some javascript where you put
Display Javascript Object In WebPage Without Knowing Its structure
I want to Display javascript document object in webpage, in the same way it is displayed in console as object opening as dropdown. Is there any way by which we can display a javascript object on webpage without knowing its structure in the same way as console does? Answer Check this out:
How to cancel all subscriptions inside UseEffect in React
I am getting this error – 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. To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function. Here’s my useEffect hook, I used a ref called …