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How to get numbers after decimal point?
...odule operation is faster. It doesn't have to do any name lookups. Whereas calling the int function does a lookup on the global variables.
– Enrico Borba
Sep 30 '17 at 8:28
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Extracting the last n characters from a string in R
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Would it be more efficient to avoid calling nchar(x) twice by assigning it to a local variable?
– Dave Jarvis
Aug 12 '17 at 3:24
add a c...
How to get an array of unique values from an array containing duplicates in JavaScript? [duplicate]
...tely the straight for loop seems to perform better JSPerf. Damn function calls are so expensive.
– merv
Nov 21 '12 at 6:04
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Django: Why do some model fields clash with each other?
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Good answer, but I don't think you were successful in avoiding rudeness :P The "why" is not obvious unless you are aware of how django works internally.
– Kenny
Nov 18 '10 at 22:38
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Is floating point math broken?
...t, since 53 bits are used to represent the numeric part (normalized), also called the mantissa, of the floating point number (e.g. the 5.3 in 5.3e5). The next sections go into more detail on the causes of hardware error on various floating point operations.
3. Cause of Rounding Error in Division
T...
C# 4 default parameter values: How to assign a default DateTime/object value? [duplicate]
... {
dt = new DateTime(1981, 03, 01);
}
//...
}
You can call it with a named parameter like this:
test(dt: new DateTime(2010, 03, 01));
And with the default parameter like this:
test();
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Why and not taking font-family and font-size from body?
...m, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", "Helvetica", "Arial", sans-serif; }
– getup8
Jun 23 at 5:14
add a commen...
How to include PHP files that require an absolute path?
...our own code to find the appropriate class file and load it only when it's called. Here is the example from the manual:
function __autoload($class_name) {
require_once $class_name . '.php';
}
$obj = new MyClass1();
$obj2 = new MyClass2();
As long as you set your include_path variables acco...
How to select only date from a DATETIME field in MySQL?
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In MYSQL we have function called DATE_FORMAT(date,format).
In your case your select statement will become like this:-
SELECT DATE_FORMAT(dateTimeFieldName,"%a%m%Y") as dateFieldName FROM table_name
For more information about Mysql DATE and TIME fun...
How to do a git diff on moved/renamed file?
...red to the file’s size). For example,
-M90% means git should consider a delete/add pair to be a rename if more than
90% of the file hasn’t changed.
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