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What does the “map” method do in Ruby?
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Decimal separator comma (',') with numberDecimal inputType in EditText
...cimal in EditText uses the dot '.' as decimal separator. In Europe it's common to use a comma ',' instead. Even though my locale is set as german the decimal separator is still the '.'
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How to zip a whole folder using PHP
...net/manual/ru/function.iterator-count.php + counter inside loop. Regarding compression level - it's not possible with ZipArchive at this moment: stackoverflow.com/questions/1833168/…
– Dador
Dec 20 '15 at 12:07
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How can I remove the first line of a text file using bash/sed script?
...aged that; tail should just read a file line by line while sed does pretty complex operations involving interpreting a script, applying regular expressions and the like.
Note: You may be tempted to use
# THIS WILL GIVE YOU AN EMPTY FILE!
tail -n +2 "$FILE" > "$FILE"
but this will give you an ...
How do I create test and train samples from one dataframe with pandas?
... The answer using sklearn from gobrewers14 is the better one. It's less complex and easier to debug. I recommend using the answer below.
– So S
Oct 2 '17 at 15:51
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Explanation of BASE terminology
...or formulating the CAP theorem.
The CAP theorem states that a distributed computer system cannot guarantee all of the following three properties at the same time:
Consistency
Availability
Partition tolerance
A BASE system gives up on consistency.
Basically available indicates that the system ...
Check if a Class Object is subclass of another Class Object in Java
... is an instance of a Class or Interface (including subclasses) you know at compile time:
boolean isInstance = someObject instanceof SomeTypeOrInterface;
Example:
assertTrue(Arrays.asList("a", "b", "c") instanceof List<?>);
b) Check if an Object is an instance of a Class or Interface (inc...
android EditText - finished typing event
...m our customers, neither do they... I am talking about a list of Edittexts/Comboboxes etc. If you only give the user one Input field and force him to press a button before he can advance to other fields then that's obviously a different story...
– AgentKnopf
Ap...
Vertically centering a div inside another div [duplicate]
...nter;
align-items: center;
}
Demo
More examples & possibilities:
Compare all the methods on one pages
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Benefits of using the conditional ?: (ternary) operator
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I would basically recommend using it only when the resulting statement is extremely short and represents a significant increase in conciseness over the if/else equivalent without sacrificing readability.
Good example:
int result = Check() ? 1 ...