Web
Notes About JS Functions Common Used
Easy Function For GetElementById Make Canvas Listen for key event Make Div Full With Screen For <div class=”App”></div>: Create URL For Uploaded File
Tool
New Tool – Chinese Handwriting
We add a new tool, Chinese Handwriting. You can choose different words style on the web page, upload your file and click on the convert button. Then the new PDF file will be generated and you can download it.
Tool
New Tool – Add Text On Image
We add a new tool, add text on image, you can use it to input your text and get a screen shot image. URL: https://www.weiy.city/functions/text-on-image/ Youtube BiliBili More online tools can be found at the following page, search what you want by keywords on the page.
Tool
New Tool – Calculator
A simple calculator which looks like the iphone app. You can use it at: https://www.weiy.city/functions/calculator/
Web
the scope of var variable in JS
Output: Here are two same variable declaration in the nested for loop. But the second var i will overlay rewriting the first one.So the sum contains only the first row values in the following example. We can use let instead of var for i when declare them in the nested for loop Read more…
Web
Install npm，node and tsc on Ubuntu 22.04.2 LTS
Install the precompiled package of Node.js from the official website. (I chose LTS Linux x64.) https://nodejs.org/en/download After extracting it, add the path to the PATH environment variable. Install tsc We can use it successfully after the above steps
VTK
Explore Asynchronous Call Between JS And WASM Interface
Make canvas response to key press event We often create our custom iteractor style object to define our interactive behaviors.Write some debug code in OnKeyPress event.For web page, the element canvas is like Qt’s widget. Set property tabindex for responsing to user key press event. Asynchronous call It’s synchronous for JS code call wasm Read more…
CPlusPlus
Check Whether File And Folder Exist
The test environment is Linux system and C.These interfaces can be used in wasm project to check files in virtual memory.
Tool
Photo Box
Here is a funny tool photo box for displaying different images. You can upload your zip file which contains images on this page, the tool can extract these files and show them as a rotating box. It’s recommended to have 6 images in the zip file. The address: https://www.weiy.city/functions/photo-box/