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Why are C# 3.0 object initializer constructor parentheses optional?
...pose we wanted to add a new prefix operator to C# called "frob":
x = frob 123 + 456;
(UPDATE: frob is of course await; the analysis here is essentially the analysis that the design team went through when adding await.)
"frob" here is like "new" or "++" - it comes before an expression of some sor...
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
... and accepts standard RGB colors in the form of strings. For example: "rgb(123,45,76)" or "rgba(45,15,74,0.45)".
Shades colors to white or black by percentage.
Blends colors together by percentage.
Does Hex2RGB and RGB2Hex conversion at the same time, or solo.
Accepts 3 digit (or 4 digit w/ alpha) H...
Read an Excel file directly from a R script
....7239 148.0940 255.0124 100
# readxl 122.0238 122.8448 132.4021 123.6964 130.2881 214.5138 100
# gdata 2004.4745 2042.0732 2087.8724 2062.5259 2116.7795 2425.6345 100
So readxl is the winner, with openxlsx competitive and gdata a clear loser. Taking each measure relative to th...
乐高机器人®组件 · App Inventor 2 中文网
... 隐私策略和使用条款 技术支持 service@fun123.cn
使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
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What is the 'dynamic' type in C# 4.0 used for?
...'ve been using C# so long that it just feels "wrong" to me.
dynamic foo = 123;
foo = "bar";
OK, so you most likely will not be writing code like the above very often. There may be times, however, when variable reuse can come in handy or clean up a dirty piece of legacy code. One simple case I run...
社交应用组件 · App Inventor 2 中文网
...选择框.电话号码 属性。
要直接指定电话号码（例如 021-12345678），请将 电话号码 属性设置为具有指定数字的文本（例如“02112345678”）。
属性
电话号码
指定要拨打的电话号码。
事件
来电已接听时(电话号码)
指示...
What is the difference between compile and link function in angularjs
... message: "Address too long"
} ]
}
};
scope.state = {
address: '123 Fern Dr'
};
and you might want a directive:
<form name="theForm">
<my-field model="state" metadata="metadata" name="address">
</form>
to auto-include the proper directives and divs to show the var...
Use of Finalize/Dispose method in C#
...
123
The official pattern to implement IDisposable is hard to understand. I believe this one is bet...
App Inventor 2 项目合并工具 AIMerge · App Inventor 2 中文网
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