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Get name of current class?
...ve, because this is wrong, even in the method scope. When you call getName from a child class it will output the child class name. It then gets tricky if you REALLy want the class you're working with.
– Kenet Jervet
Jun 8 '15 at 5:16
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Ruby: kind_of? vs. instance_of? vs. is_a?
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kind_of? and is_a? are synonymous.
instance_of? is different from the other two in that it only returns true if the object is an instance of that exact class, not a subclass.
Example:
"hello".is_a? Object and "hello".kind_of? Object return true because "hello" is a String and String...
Render HTML to an image
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given an html file, generate a (png) image with transparent background from the command line
Using Chrome headless (version 74.0.3729.157 as of this response), it is actually easy:
"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome" --headless --screenshot --window-size=256,256 --d...
What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...ion ("bit scan reverse"). It's fast on some x86s (microcoded on others). From the manual:
Searches the source operand for the most significant set
bit (1 bit). If a most significant 1
bit is found, its bit index is stored
in the destination operand. The source operand can be a
register...
How do you do Impersonation in .NET?
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That link from the Dutch programmer's blog was excellent. Much more intuitive approach to impersonation than the other techniques presented.
– code4life
Aug 22 '16 at 23:26
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What does “Mass Assignment” mean in Laravel?
...u want this to actually allow for updating.
You can also block all fields from being mass-assignable by doing this:
protected $guarded = ['*'];
Let's say in your user table you have a field that is user_type and that can have values of user / admin
Obviously, you don't want users to be able to ...
Force line-buffering of stdout when piping to tee
... unbuffer -p tee output.txt
(-p is for pipeline mode where unbuffer reads from stdin and passes it to the command in the rest of the arguments)
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Callback when CSS3 transition finishes
...(transitioning its opacity to 0) and then when finished remove the element from the DOM.
5 Answers
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The type or namespace name could not be found [duplicate]
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This happened to me last week but from loading a 4.5.2 library in a 4.5 project. Just a note: A 4.5.2 project can load a 4.5 or 4.5.1 library just fine.
– ahwm
Jan 12 '15 at 16:13
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Object comparison in JavaScript [duplicate]
...e identical text but refer to different closures
Tests: passes tests are from How to determine equality for two JavaScript objects?.
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