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Difference between . and : in Lua
...ccessing obj
--> 20
tab.obj:method(10)
--> Accessing obj
--> 10
Now imagine the __index metamethod did more than just printing something. Imagine it increased a counter, logged something to a file or deleted a random user from your database. There's a big difference between doing that twi...
Executing a command stored in a variable from PowerShell
...zip', 'C:\TEMP\with space\changelog'
& $cmd $prm
If the command is known (7z.exe) and only parameters are variable then this will do
$prm = 'a', '-tzip', 'c:\temp\with space\test1.zip', 'C:\TEMP\with space\changelog'
& 7z.exe $prm
BTW, Invoke-Expression with one parameter works for me...
Gradle alternate to mvn install
...t if he wants to create a new project, example2, which also relies on sdk? Now he has to put 2 unrelated projects under a root project just because they share a dependency? You would think this entire 'multi-project' setup would be 1 Git project as well. Again, is this bad for company / multi-devel...
Javascript: get package.json data in gulpfile.js
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@spikeheap I don't know if I've ever laughed out loud before reading a comment on StackOverflow, but I was RIGHT there with you! Thanks for the cheers. Haha.
– bit-less
Jun 19 '16 at 4:27
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What is the purpose of using -pedantic in GCC/G++ compiler?
....
-pedantic causes the compiler to actually comply to the C standard; so now it will produce a diagnostic message, as is required by the standard:
gcc -c -pedantic -std=c90 pedantic_test.c
pedantic_test.c:2:9: warning: ISO C forbids zero-size array ‘zero_size_array’ [-Wpedantic]
int zero...
Update MongoDB field using value of another field
...requests);
}
MongoDB 2.6 and 3.0
From this version you need to use the now deprecated Bulk API and its associated methods.
var bulk = db.collection.initializeUnorderedBulkOp();
var count = 0;
cursor.snapshot().forEach(function(document) {
bulk.find({ '_id': document._id }).updateOne( {
...
Why does Java allow us to compile a class with a name different than the file name?
...advent of nested / anonymous classes, if the same decision were to be made now (not caring about backwards compatibility) it would make much more sense to just allow one top level class per file.
– Michael Berry
Nov 25 '13 at 14:45
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Android: How to enable/disable option menu item on button click?
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How do you know the integer ID of MenuItem added at run-time? You can only add them by name.
– Antonio Sesto
Apr 12 '15 at 14:36
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CSS: How do I auto-resize an image to fit a 'div' container?
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Just fixed it. 2 and 3 may now be both wrong or both right, instead of one being wrong and one being right. I can't remember what the correct answer is. ;)
– Neil
Dec 5 '11 at 5:33
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How do I escape the wildcard/asterisk character in bash?
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Great answer! Now I don't feel I asked such a dumb question. :-)
– andyuk
Sep 19 '08 at 18:12
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