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npm install vs. update - what's the difference?
...in package.json:
{
"name": "my-project",
"version": "1.0", // install update
"dependencies": { // ------------------
"already-installed-versionless-module": "*", // ignores "1.0" -> "1.1"
"already...
Rails 3: I want to list all paths defined in my rails application
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230
rake routes
or
bundle exec rake routes
...
Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...t has 4 lines, each holding 64 bytes. We first attempt to read the address 0x2710, which goes in set 28. And then we also attempt to read addresses 0x2F00, 0x3700, 0x3F00 and 0x4700. All of these belong to the same set. Before reading 0x4700, all lines in the set would have been occupied. Reading th...
What happens if I define a 0-size array in C/C++?
... curious, what actually happens if I define a zero-length array int array[0]; in code? GCC doesn't complain at all.
7 Ans...
Bash Script: count unique lines in file
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306
You can use the uniq command to get counts of sorted repeated lines:
sort ips.txt | uniq -c
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Pick a random element from an array
...]
print(array.randomElement()!) // Using ! knowing I have array.count > 0
If you don't create the array and aren't guaranteed count > 0, you should do something like:
if let randomElement = array.randomElement() {
print(randomElement)
}
Swift 4.1 and below
Just to answer your questi...
How to change the style of alert box?
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edited Dec 10 '19 at 17:32
answered Oct 21 '11 at 17:39
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Usage of sys.stdout.flush() method
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Haldean BrownHaldean Brown
10.4k44 gold badges3636 silver badges5555 bronze badges
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Select statement to find duplicates on certain fields
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840
To get the list of fields for which there are multiple records, you can use..
select field1,fiel...
Disable Maven warning message - “Selected war files include a WEB-INF/web.xml which will be ignored”
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I got rid of this warning in maven 3.0.1 with the following build configuration (i believe perhaps web.xml is added to the project by other means, and should't be packaged by default):
<project>
...
<build>
<plugins>
...