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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...r empty sha1 tree (instead of relying of a "well known value").
Note: Git 2.25.1 (Feb. 2020) proposes in commit 9c8a294:
empty_tree=$(git mktree </dev/null)
# Windows:
git mktree <NUL
And adds:
As a historical note, the function now known as repo_read_object_file() was taught the empty...
How do I copy directories recursively with gulp?
...
322
The following works without flattening the folder structure:
gulp.src(['input/folder/**/*']).p...
How to create a checkbox with a clickable label?
...ype="checkbox" name="checkbox" value="value">Text</label>
Method 2: Use the for Attribute
Use the for attribute (match the checkbox id):
<input type="checkbox" name="checkbox" id="checkbox_id" value="value">
<label for="checkbox_id">Text</label>
NOTE: ID must be unique o...
Do I need a Global.asax.cs file at all if I'm using an OWIN Startup.cs class and move all configurat
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172
Startup.Configuration gets called slightly later than Application_Start, but I don't think the d...
How to change ProgressBar's progress indicator color in Android
...adius="5dip" />
<gradient
android:angle="270"
android:centerColor="#ff5a5d5a"
android:centerY="0.75"
android:endColor="#ff747674"
android:startColor="#ff9d9e9d" />
</shape>
</ite...
Convert audio files to mp3 using ffmpeg
...
247
You could use this command:
ffmpeg -i input.wav -vn -ar 44100 -ac 2 -b:a 192k output.mp3
Ex...
Most common way of writing a HTML table with vertical headers?
...s must contain the same number of columns." - Last paragraph of section 11.2.3.
With that being said, the first option is the better approach in my opinion because it's readable regardless of whether or not I have CSS enabled. Some browsers (or search engine crawlers) don't do CSS and as such, it'l...
Get the index of the nth occurrence of a string?
...
52
That's basically what you need to do - or at least, it's the easiest solution. All you'd be "was...
Ball to Ball Collision - Detection and Handling
...s, the new velocities can be calculated using the equations (where v1 and v2 are the velocities after the collision, and u1, u2 are from before):
If the balls have the same mass then the velocities are simply switched. Here's some code I wrote which does something similar:
void Simulation::c...
How do I remove the old history from a git repository?
...
123
Just create a graft of the parent of your new root commit to no parent (or to an empty commit, ...