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MySQL “between” clause not inclusive?
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rahmanisback from MySQL Documentation I can confirm the last second WILL be included since BETWEEN is in both-ways inclusive. refer to dev.mysql.com/doc/refman/5.5/en/…
– Felype
Nov 25 '15 at 13:17
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How to find which rspec test is taking so long
One (or a couple) of our tests are taking forever and we'd like to optimize them.
1 Answer
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How can I tell Rails to use RSpec instead of test-unit when creating a new Rails app?
I have test-unit installed and rspec installed (along with -core , -expectations , -mocks and -rails version 2.6.x). When I run the command rails new foo , it uses test-unit to generate the test stub files instead of rspec .
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Eclipse does not highlight matching variables
...mentioned in the top answers here and it's STILL not working try this.
To confirm the problem:
Select a variable
Notice the highlight didn't work
Click away from eclipse so the editor loses focus.
Click on eclipse's title bar so it regains focus, your variable should be highlighted.
If this is ...
How do I delete a local repository in git? [duplicate]
... you'll want to use "rm -rf .git" or you'll be pressing "y" to confirm for every single file in the directory.
– Brent Sandstrom
Sep 24 '19 at 13:21
add a comment
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How do I update a Python package?
...ll [package_name] --upgrade
sudo will ask to enter your root password to confirm the action.
Note: Some users may have pip3 installed instead. In that case, use
sudo pip3 install [package_name] --upgrade
share
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How to create a static library with g++?
...de. I have header.cpp , header.hpp . I would like to create header.a . Test the header.a in test.cpp . I am using g++ for compiling.
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Change default timeout for mocha
If we have a unit test file my-spec.js and running with mocha:
4 Answers
4
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In R, how to get an object's name after it is sent to a function?
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The old deparse-substitute trick:
a<-data.frame(x=1:10,y=1:10)
test<-function(z){
mean.x<-mean(z$x)
nm <-deparse(substitute(z))
print(nm)
return(mean.x)}
test(a)
#[1] "a" ... this is the side-effect of the print() call
# ... you could have done something...
regex.test V.S. string.match to know if a string matches a regular expression
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Basic Usage
First, let's see what each function does:
regexObject.test( String )
Executes the search for a match between a regular expression and a specified string. Returns true or false.
string.match( RegExp )
Used to retrieve the matches when matching a string against a regular...