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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
... @NicNilov are you talking about the answer OR Nathan Wallace's comment?
– Mark
Dec 28 '17 at 16:10
@Mark I...
What is the best way to count “find” results?
...an counting the lines.
Note that I use the find's printf, not an external command.
Let's bench a bit :
$ ls -1
a
e
l
ll.sh
r
t
y
z
My snippet benchmark :
$ time find -type f -printf '.' | wc -c
8
real 0m0.004s
user 0m0.000s
sys 0m0.007s
With full lines :
$ time find -type f | ...
What's the most elegant way to cap a number to a segment? [closed]
...lue is limited to the given range.
*
* Example: limit the output of this computation to between 0 and 255
* (x * 255).clamp(0, 255)
*
* @param {Number} min The lower boundary of the output range
* @param {Number} max The upper boundary of the output range
* @returns A number in the range [min...
SQL query to get all values a enum can have
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Difference between jQuery’s .hide() and setting CSS to display: none
... 1px solid;
padding: 5px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>
<button class="hide">Hide</button>
<button class="show">Show</button>
</p>
<div class="toggle">Lorem Ip...
How to execute Python scripts in Windows?
...that extension. It's associated with the file type "Python.File", so this command shows what it will be doing:
C:\>ftype Python.File
Python.File="c:\python26\python.exe" "%1" %*
So on my machine, when I type "blah.py foo", it will execute this exact command, with no difference in res...
How to parameterize @Scheduled(fixedDelay) with Spring 3.0 expression language?
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mysql :: insert into table, data from another table?
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Changing selection in a select with the Chosen plugin
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What is the __DynamicallyInvokable attribute for?
...prime the reflection type info cache, making subsequent reflection code on common framework types run faster. There's a comment about it in the Reference Source for System.Reflection.Assembly.cs, RuntimeAssembly.Flags property:
// Each blessed API will be annotated with a "__DynamicallyInvokableA...