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How do I check if a variable exists?
I want to check if a variable exists. Now I'm doing something like this:
11 Answers
11...
Get Visual Studio to run a T4 Template on every build
...ow do I get a T4 template to generate its output on every build? As it is now, it only regenerates it when I make a change to the template.
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Image resizing client-side with JavaScript before upload to the server
...de with JavaScript (really resize, not just change width and height).
I know it's possible to do it in Flash but I would like to avoid it if possible.
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Is REST DELETE really idempotent?
...LETE http://example.com/account/123 then the effect is that account 123 is now deleted from the server. That is the one and only effect, the one and only change to the state of the server. Now lets say you do the same DELETE http://example.com/account/123 request again, the server will respond diff...
Using an image caption in Markdown Jekyll
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Jekyll now includes a site.url variable.
– Roy Tinker
Nov 14 '14 at 0:22
20
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Getting back old copy paste behaviour in tmux, with mouse
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I use bind m set-option mouse\; display-message "Mouse is now #{?mouse,on,off}"
– Maxim Suslov
Aug 6 '18 at 10:51
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社交应用组件 · App Inventor 2 中文网
...化：
when 按钮_查询.Click() {
日历日程1.GetEvents(计时器1.Now(), 计时器1.AddDays(计时器1.Now(), 7))
}
when 日历日程1.GotEvents(日程列表) {
var lines = []
foreach ev in 日程列表 {
listAdd(lines, join(计时器1.FormatDateTime(计时器1.MakeInstantFromMillis...
Simulate low network connectivity for Android [closed]
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Wow, now if you could suggest me a way to fit myself into the oven too. And ovens are designed for shielding 2.4 GHz. It may not work for lower frequencies. IDK!
– WindRider
Jan 30 '19 at 17:...
What APIs are used to draw over other apps (like Facebook's Chat Heads)?
... that events outside of your display area go to the underlying UIs. You'll now find it works, but that other bad things still happen, like the back/menu buttons don't get directed to apps, plus no keyboard. To solve that you need FLAG_NOT_FOCUSABLE.
You get a side effect from the non-focusable bit ...
Understanding FFT output
... as sqrt (real * real + imag * imag). This number will always be positive. Now all you have to search is for the maximum value (ignore the first entry in your array. That is your DC offset and carries no frequency dependent information).
You get 32 real and 32 imaginary outputs because you are usin...