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Is there any way I can define a variable in LaTeX?
...xisting macros without any warnings and therefore can cause various subtle errors. To overcome this either use namespaced variables like my_var or fall back to \newcommand, \renewcommand commands instead.
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How to install Maven 3 on Ubuntu 18.04/17.04/16.10/16.04 LTS/15.10/15.04/14.10/14.04 LTS/13.10/13.04
...ollowing:
set it up from scratch
repair it if apt-get update gives a 404 error after add-apt-repository
repair it if apt-get update gives a NO_PUBKEY error after manually adding it to /etc/apt/sources.list
Open a terminal and run the following:
sudo -i
Enter your password if necessary, then p...
Testing whether a value is odd or even
...one outside the isEven and isOdd functions, so you don't have to duplicate error handling in both functions.
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How do I convert a column of text URLs into active hyperlinks in Excel?
...l A1 contains a string longer than 255 characters. It results in a #VALUE! error
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How to install latest version of Node using Brew
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Error: No such keg: /usr/local/Cellar/node
– Hos Mercury
Jun 1 '17 at 22:21
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Selenium wait until document is ready
... I tried this idea in a VB test app. Works most of the time. I get this error sometimes: System.InvalidOperationException : JavaScript error (UnexpectedJavaScriptError) at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError(Response errorResponse) Test app clicks on level 2 menu link,...
How to check if a file is empty in Bash?
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Using the tool shellcheck can find spelling errors just fine.
– Yokai
Oct 3 '16 at 3:30
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How do I round to the nearest 0.5?
...not correct. Since arithmetic with doubles usually has some small rounding errors, an operation such as 4.8 - 4.0 could give for example 0.799999... . In this case the code above would round to 4.5. Also better would to use Math.Floor instead of Math.Truncate, because right now negative numbers are...
What's the difference between faking, mocking, and stubbing?
...urns a canned response, or that responds to an API request with a specific error. This way you could write tests that make assertions about how the system reacts to these states; for example, testing the response your users get if the API returns a 404 error.
A stub is usually implemented to only r...
How do I execute a string containing Python code in Python?
... setattr(x, s, 42) is the right syntax. Surprised it took so long for that error to be caught. Anyway, the point is that getattr and setattr are an alternative to exec when all you want is to get an arbitrary member, looked up by string.
– ShreevatsaR
Oct 11 '1...