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What is the difference between the dot (.) operator and -> in C++? [duplicate]
...force this with parenthesis:
(*pointervariable).foo
But typing the ()'s all the time is hard, so they developed -> as a shortcut to say the same thing. If you are accessing a property of an object or object reference, use . If you are accessing a property of an object through a pointer, use -...
RegEx for Javascript to allow only alphanumeric
I need to find a reg ex that only allows alphanumeric. So far, everyone I try only works if the string is alphanumeric, meaning contains both a letter and a number. I just want one what would allow either and not require both.
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Group by month and year in MySQL
...y year and month. Lets say you want to order from this year and this month all the way back to 12 month
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ImportError: No module named site on Windows
I am trying to install Python for the first time. I downloaded the following installer from the Python website:
Python 2.7.1 Windows Installer (Windows binary -- does not include source) . I then ran the installer, selected 'All Users' and all was fine. I installed Python into the default location:...
How to use java.String.format in Scala?
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While all the previous responses are correct, they're all in Java. Here's a Scala example:
val placeholder = "Hello %s, isn't %s cool?"
val formatted = placeholder.format("Ivan", "Scala")
I also have a blog post about making for...
Add table row in jQuery
...nstead of $('#myTable > tbody:last').
– Erik Töyrä Silfverswärd
Jan 25 '12 at 12:48
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Using CSS to affect div style inside iframe
... your domain, you can control it, if not, you're locked out. This prevents all kinds of Iframe-based page hijacking.
– Diodeus - James MacFarlane
Dec 29 '09 at 16:08
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Using Html.ActionLink to call action on different controller
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The overload of ActionLink are really clumsy. The whole point of accepting an 'object routeValues' instead of a RouteValueCollection is to reduce the amount of typing. However, you end up having to type an extra null. Non-intuitive and counter productive ......
AWK: Access captured group from line pattern
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I prefer 'perl -n -p -e...' over awk for almost all use cases, since it is more flexible, more powerful and has a saner syntax in my opinion.
– Peter Tillemans
Jun 23 '11 at 18:39
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How to set breakpoints on future shared libraries with a command flag
... answered Jul 19 '12 at 20:41
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