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HashSet versus Dictionary w.r.t searching time to find if an item exists
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HashSet vs List vs Dictionary performance test, taken from here.
Add 1000000 objects (without checking duplicates)
Contains check for half the objects of a collection of 10000
Remove half the objects of a collection of 10000
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How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
...earch to only match at that position or earlier. For example:
std::string test = "0123123";
size_t match1 = test.rfind("123"); // returns 4 (rightmost match)
size_t match2 = test.rfind("123", 2); // returns 1 (skipped over later match)
size_t match3 = test.rfind("123", 0); // returns std::string...
In C, how should I read a text file and print all strings
I have a text file named test.txt
7 Answers
7
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How to check for an undefined or null variable in JavaScript?
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I think the most efficient way to test for "value is null or undefined" is
if ( some_variable == null ){
// some_variable is either null or undefined
}
So these two lines are equivalent:
if ( typeof(some_variable) !== "undefined" && some_variab...
Disable same origin policy in Chrome
...(or chromium) and restart with the --disable-web-security argument. I just tested this and verified that I can access the contents of an iframe with src="http://google.com" embedded in a page served from "localhost" (tested under chromium 5 / ubuntu). For me the exact command was:
Note : Kill all...
Loop through files in a folder using VBA?
... takes wild cards so you could make a big difference adding the filter for test up front and avoiding testing each file
Sub LoopThroughFiles()
Dim StrFile As String
StrFile = Dir("c:\testfolder\*test*")
Do While Len(StrFile) > 0
Debug.Print StrFile
StrFile = Dir
L...
Replacing spaces with underscores in JavaScript?
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Future people browsing this @Inez has a link to test both speeds of split/join VS. replace. As of late 2018 replace is significantly faster.
– ricks
Aug 17 '18 at 14:48
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Why is string concatenation faster than array join?
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I know this is an old thread, but your test is incorrect. You are doing output += myarray[i]; while it should be more like output += "" + myarray[i]; because you've forgot, that you have to glue items together with something. The concat code should be something li...
How to check if remote branch exists on a given remote repository?
...he most idiomatic solution. The result can be checked directly in a shell test or by checking the status variable $?.
$ git ls-remote --exit-code --heads git@github.com:user/repo.git branch-name
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AngularJS : automatically detect change in model
...elements according to it's state (modified/not modified) dynamically or to test whether some values has actually changed, you can use the following module, developed by myself:
https://github.com/betsol/angular-input-modified
It adds additional properties and methods to the form and it's child elem...