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What are important languages to learn to understand different approaches and concepts? [closed]
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What about Prolog (for unification/backtracking etc), Smalltalk (for "everything's a message"), Forth (reverse polish, threaded interpreters etc), Scheme (continuations)?
Not a language, but the Art of the Metaobject Protocol is mind-bending stuff
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git reset --hard HEAD leaves untracked files behind
...is script:
git reset --hard HEAD
git clean -f -d
git checkout master
git fetch origin master
git reset --hard origin/master
git pull
git submodule update
git submodule update --init --recursive
git submodule foreach git reset --hard HEAD
git submodule foreach git clean -f -d
git submodule foreach g...
Calling a Java method with no name
...ve as many of them in your class as you want, and they will be executed in order of their appearance (from top to bottom).
This:
{
System.out.print("y ");
}
is an initialization block, and the code is copied into the beginning of each constructor of the class. So if you have many...
Create timestamp variable in bash script
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In order to get the current timestamp and not the time of when a fixed variable is defined, the trick is to use a function and not a variable:
#!/bin/bash
# Define a timestamp function
timestamp() {
date +"%T" # current time
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Monad in plain English? (For the OOP programmer with no FP background)
... result through the nullable constructor. Now suppose you have this higher-order method:
static Nullable<T> Bind<T>(Nullable<T> amplified, Func<T, Nullable<T>> func)
{
if (amplified == null)
return null;
else
return func(amplified.Value);
}
S...
How to getText on an input in protractor
...getText() function won't work like the way it used to be for webdriver, in order to get it work for protractor you will need to wrap it in a function and return the text something like we did for our protractor framework we have kept it in a common function like -
getText : function(element, callba...
What do column flags mean in MySQL Workbench?
...ry field is filled with 0’s to the 5th digit. 12 = 00012, 400 = 00400, etc. )
AI - Auto Increment
G - Generated column. i.e. value generated by a formula based on the other columns
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im...
Difference between onCreate() and onStart()? [duplicate]
...uld do all of your normal static set up: create views, bind data to lists, etc. This method also provides you with a Bundle containing the activity's previously frozen state, if there was one.
Always followed by onStart().
***onStart()***
Called when the activity is becoming visible to the user.
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How to find out if a file exists in C# / .NET?
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How do I delete a Discipline in EPF Composer 1.5?
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