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Count the number occurrences of a character in a string
...ences of substring sub in the range [start, end]. Optional arguments start and end are interpreted as in slice notation.
>>> sentence = 'Mary had a little lamb'
>>> sentence.count('a')
4
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How to run Rake tasks from within Rake tasks?
...y_invoked state, allowing the task to
then be executed again, dependencies and all:
Rake::Task["build"].reenable
Rake::Task["build"].invoke
Note that dependencies already invoked are not automatically re-executed unless they are re-enabled. In Rake >= 10.3.2, you can use the following to re-ena...
How to make git ignore changes in case?
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You can force git to rename the file in a case-only way with this command:
git mv --cached name.txt NAME.TXT
Note this doesn't change the case of the file in your checked out copy on a Windows partition, but git records the casing change and you can commit that change. Future checkouts will ...
How to run cron job every 2 hours
...wered Jun 21 '11 at 10:10
James AndersonJames Anderson
25.8k77 gold badges4444 silver badges7575 bronze badges
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How to get a enum value from string in C#?
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Before .NET 4.5, you had to do the following, which is more error-prone and throws an exception when an invalid string is passed:
(uint)Enum.Parse(typeof(baseKey), "HKEY_LOCAL_MACHINE")
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java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger for JUnit test case for Java mail
I am using Java Mail API to read and parse emails. It is working fine with Servlet code.
7 Answers
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What is the use of having destructor as private?
...en "friend"ed) responsible for counting the number of references to itself and delete it when the number hits zero. A private dtor would prevent anybody else from deleting it when there were still references to it.
For another instance, what if you have an object that has a manager (or itself) tha...
how to avoid a new line with p tag?
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Span is the same and doesn't go onto a new line! as one.beat.consumer said
– Anicho
Apr 26 '12 at 22:38
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Can angularjs routes have optional parameter values?
Can I set a route with optional params (same template and controller, but some params should be ignored if they don't exist?
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What are namespaces?
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Namespacing does for functions and classes what scope does for variables. It allows you to use the same function or class name in different parts of the same program without causing a name collision.
In simple terms, think of a namespace as a person's su...