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Double Negation in C++
...l back when we had no bool type, to help avoid storing values other than 1 and 0 in boolean variables.
– Mike Seymour
Jan 17 '12 at 19:01
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annotation to make a private method public only for test classes [duplicate]
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The common way is to make the private method protected or package-private and to put the unit test for this method in the same package as the class under test.
Guava has a @VisibleForTesting annotation, but it's only for documentation purposes.
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Recursive file search using PowerShell
...ntinue -fo -inc "filename.txt" | % { $_.fullname }
– Andrew
Nov 4 '17 at 7:34
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What makes a SQL statement sargable?
...ery row of the table. Much better to use:
WHERE myDate >= '01-01-2008' AND myDate < '01-01-2009'
Some other examples:
Bad: Select ... WHERE isNull(FullName,'Ed Jones') = 'Ed Jones'
Fixed: Select ... WHERE ((FullName = 'Ed Jones') OR (FullName IS NULL))
Bad: Select ... WHERE SUBSTRING(Deal...
What is the boundary in multipart/form-data?
...As you can see, the server knows that parameters are separated by an ampersand &. If & is required for a parameter value then it must be encoded.
So how does the server know where a parameter value starts and ends when it receives an HTTP request using multipart/form-data?
Using the bounda...
Why does the is operator return false when given null?
...e) type
One would be implicitly assuming that a type is a set of values, and that assignment compatibility of a value y with a variable of type X is nothing more nor less than checking whether y is a member of set x.
Though that is an extremely common way of looking at types, that is not the onl...
How to continue a task when Fabric receives an error
...ne a task to run on several remote servers, if the task runs on server one and exits with an error, Fabric will stop and abort the task. But I want to make fabric ignore the error and run the task on the next server. How can I make it do this?
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Reload Flask app when template file changes
...tion using the built-in server ( Flask.run ), it monitors its Python files and automatically reloads the app if its code changes:
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How to center text vertically with a large font-awesome icon?
Lets say I have a bootstrap button with a font-awesome icon and some text:
14 Answers
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Java - Including variables within strings?
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I'm not sure if that is attractive enough for you, but it can be quite handy. The syntax is the same as for printf and java.util.Formatter. I've used it much especially if I want to show tabular numeric data.
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