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How to count items in JSON object using command line?
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EF Code First foreign key without navigation property
...er it only as an ordinary scalar property. Somehow all the above is only a more complicated and slower way compared to just opening a SQL management tool and to add the constraint by hand.
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Append class if condition is true in Haml
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More succinct for multiple conditions: { class:[ (:class1 if cond1), (:class2 if cond2) ] }
– Phrogz
May 2 '15 at 19:19
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Configuring diff tool with .gitconfig
...oice.
Specifying your own difftool, on the other hand, takes a little bit more work, see How do I view 'git diff' output with my preferred diff tool/ viewer?
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mysql check collation of a table
...INFORMATION_SCHEMA.TABLES
WHERE TABLE_NAME = 't_name';
that gives a much more readable output in contrast to SHOW TABLE STATUS that contains a lot of irrelevant information.
Note that collation can also be applied to columns (which might have a different collation than the table itself). To fe...
nginx: send all requests to a single html page
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How to check if a map contains a key in Go?
... } else {
fmt.Println("key not found")
}
}
Or, more compactly,
if value, ok := dict["baz"]; ok {
fmt.Println("value: ", value)
} else {
fmt.Println("key not found")
}
Note, using this form of the if statement, the value and ok variables are only visible inside ...
Network usage top/htop on Linux
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nethogs is nice, but it seems to use way more cpu on my computer than iftop
– aidan
Jul 29 '15 at 6:15
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How to switch to REPLACE mode in VIM
...g Insert in INSERT mode, but that requires some stretching. Is there any more convenient shortcut to go directly from NORMAL mode to REPLACE mode?
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