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Understanding implicit in Scala
... of the reasons I stopped trying to learn Scala many years ago and am only now coming back to it. I was never sure where some (many) of the implicits were coming from in the code I was looking at.
– melston
Mar 19 '19 at 19:23
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Preloading images with JavaScript
... globally which can cause error that are really hard to solve (unless you know that you forgot the var statement. for (var i = 0.....
– Mohammer
Jun 13 '16 at 23:37
2
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Opening Vim help in a vertical split window
...mmand -nargs=* -complete=help Help vertical belowright help <args>
Now you can open a vertical help with the :Help command (notice that the first-letter is uppercase)
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How can I autoplay a video using the new embed code style for Youtube?
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This doesn't appear to work as of right now. It worked perfectly 1 week ago.
– Peeja
Feb 18 '14 at 15:36
23
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get dictionary value by key
...n the dictionary.
return; // or whatever you want to do
}
// xmlfile is now equal to the value
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How to concatenate two MP4 files using FFmpeg?
...fmpeg -i myfile2.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts temp2.ts
// now join
ffmpeg -i "concat:temp1.ts|temp2.ts" -c copy -bsf:a aac_adtstoasc output.mp4
NOTE!:
Output will be like first file ( and not a second one)
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Understanding generators in Python
...u do not look into until you understand the basic concept of a generator.
Now you may ask: why use generators? There are a couple of good reasons:
Certain concepts can be described much more succinctly using generators.
Instead of creating a function which returns a list of values, one can write ...
How can a Javascript object refer to values in itself? [duplicate]
...obj = { key1: "it" };
obj.key2 = obj.key1 + ' ' + 'works!';
// obj.key2 is now 'it works!'
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Inserting a tab character into text using C#
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Where did you find this data? I would like to know for my reference.
– QueueHammer
Jan 25 '10 at 19:49
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How get integer value from a enum in Rails?
...turns the integer value
Update for rails 5
For rails 5 the above method now returns the string value :(
The best method I can see for now is:
my_model.sale_info_before_type_cast
Shadwell's answer also continues to work for rails 5.
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