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Using a Single Row configuration table in SQL Server database. Bad idea?
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190
I have done this two ways in the past - a single row table and a key/value pair table - and ther...
How to check a not-defined variable in JavaScript
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1707
In JavaScript, null is an object. There's another value for things that don't exist, undefined....
HTML5 Video Dimensions
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106
<video id="foo" src="foo.mp4"></video>
var vid = document.getElementById("foo");
v...
Encode html entities in javascript
... code would look something like this:
var encodedStr = rawStr.replace(/[\u00A0-\u9999<>\&]/gim, function(i) {
return '&#'+i.charCodeAt(0)+';';
});
This code will replace all characters in the given range (unicode 00A0 - 9999, as well as ampersand, greater & less than) with th...
StatusbarTools 扩展 - 状态栏自定义工具 · App Inventor 2 中文网
...置状态栏的背景颜色，使用十六进制颜色值，例如 “#FF0000” 表示红色。
透明背景
设置状态栏背景是否透明。true为透明，false为不透明。
图标颜色
设置状态栏图标的颜色。可选值为 “Light”（浅色）或 “Dark”（深色）...
Why does Path.Combine not properly concatenate filenames that start with Path.DirectorySeparatorChar
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210
This is kind of a philosophical question (which perhaps only Microsoft can truly answer), since ...
Print the contents of a DIV
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530
Slight changes over earlier version - tested on CHROME
function PrintElem(elem)
{
var mywin...
How does a hash table work?
...n the library. The output of the hash calculation could be in the range of 0 to one billion which is a lot higher.
So, what do we do? We use something called modulus calculation, which basically says that if you counted to the number you wanted (i.e. the one billion number) but wanted to stay insid...
FfmpegKit 拓展：在 App Inventor 中使用 FFmpeg 的免费开源扩展 · App Inventor 2 中文网
...在 GitHub 仓库查看源码或参与贡献：
https://github.com/vknow360/FfmpegKit（该仓库同样提供 aix 文件）。
如果你觉得这个扩展有用并希望支持它的开发，可以考虑捐赠，这有助于作者继续制作免费开源的扩展：
Buy me a coffee：https://buy...