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Replace words in a string - Ruby
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sentence.sub! 'Robert', 'Joe'
Won't cause an exception if the replaced word isn't in the sentence (the []= variant will).
How to replace all instances?
The above replaces only the first instance of "Robert".
To replace all instances use gsub/gsub! (ie. "global substitution"):...
How to display a content in two-column layout in LaTeX?
...se:
\begin{multicols}{2}
Column 1
\columnbreak
Column 2
\end{multicols}
If you omit the \columnbreak, the columns will balance automatically.
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How to use split?
.... Note that .split() is not a jQuery method, but a native string method.
If you use .split() on a string, then you get an array back with the substrings:
var str = 'something -- something_else';
var substr = str.split(' -- ');
// substr[0] contains "something"
// substr[1] contains "something_els...
or (HTML5)
...<menu>'s type attribute is omitted or set to "toolbar". See the specification for the <li> element and the <menu> element.
– tomekwi
May 27 '15 at 7:31
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How do I fix the error 'Named Pipes Provider, error 40 - Could not open a connection to' SQL Server'
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What if this services isn't here? I have installed SQL Server 17. I don't see this service....
– Ciaran Gallagher
Jul 26 '17 at 18:33
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What is an .inc and why use it?
...ension. It is some people's convention to name files with a .inc extension if that file is designed to be included by other PHP files, but it is only convention.
It does have a possible disadvantage which is that servers normally are not configured to parse .inc files as php, so if the file sits i...
How do I run a simple bit of code in a new thread?
I have a bit of code that I need to run in a different thread than the GUI as it currently causes the form to freeze whilst the code runs (10 seconds or so).
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jQuery get value of select onChange
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I know this is quite late but if you are using the keyboard (tabbing) to navigate a form and use the up/down arrows to choose from a dropdown list then FireFox (22.0) does not trigger the change event. You need to additionally bind keypress for FireFox. A...
Difference between “git checkout ” and “git checkout -- ”
... point as a file name, no matter what it looks like." This is not Git-specific, it's a general Unix command line convention. Normally you use it to clarify that an argument is a file name rather than an option, e.g.
rm -f # does nothing
rm -- -f # deletes a file named "-f"
git checkout1 ...
How to get started on TDD with Ruby on Rails? [closed]
...cations.
Also Railscast has some excellent screencasts about how to use different testing tools.
What do I need to test?
I will start with models, since they are easy to test. The simple rule is that you need to cover every if statement in your test.
You should test the purpose of the meth...