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How to format numbers by prepending 0 to single-digit numbers?
...
If the number is higher than 9, convert the number to a string (consistency). Otherwise, add a zero.
function n(n){
return n > 9 ? "" + n: "0" + n;
}
n( 9); //Returns "09"
n(10); //Returns "10"
n(999);//Returns "999"
...
Format bytes to kilobytes, megabytes, gigabytes
...] Number of digits after the decimal point (eg. 1)
* @return string Value converted with unit (eg. 25.3KB)
*/
function formatBytes($bytes, $precision = 2) {
$unit = ["B", "KB", "MB", "GB"];
$exp = floor(log($bytes, 1024)) | 0;
return round($bytes / (pow(1024, $exp)), $precision).$unit[...
How to subtract X days from a date using Java calendar?
... @ShahzadImam, check out DateTimeFormat. It will allow you to convert DateTime instances to strings using arbitrary formats. It's very similar to the java.text.DateFormat class.
– Mike Deck
Feb 28 '12 at 15:40
...
Difference between two dates in Python
... d2 = d2.strftime("%Y-%m-%d")
return abs((d2 - d1).days)
This will convert your datetime objects to strings but, two things
1) Trying to do d2 - d1 will fail as you cannot use the minus operator on strings and
2) If you read the first line of the above answer it stated, you want to use the ...
Getting a File's MD5 Checksum in Java
... return complete.digest();
}
// see this How-to for a faster way to convert
// a byte array to a HEX string
public static String getMD5Checksum(String filename) throws Exception {
byte[] b = createChecksum(filename);
String result = "";
for (int i=0; i < b.lengt...
What is std::move(), and when should it be used?
...ically a function - I would say it isn't really a function. It's sort of a converter between ways the compiler considers an expression's value.
2. "What does it do?"
The first thing to note is that std::move() doesn't actually move anything. It changes an expression from being an lvalue (such as a n...
ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
...ver, if you supply a RoundingMode and a precision, then it will be able to convert (eg. 1.333333333-to-infinity to something like 1.3333 ... but you as the programmer need to tell it what precision you're 'happy with'.
share...
Given a number, find the next higher number which has the exact same set of digits as the original n
...orce increment, sort and compare
Along the brute force solutions would be convert to a String
and brute force all the possible numbers using those digits.
Create ints out of them all, put them in a list and sort it,
get the next entry after the target entry.
If you spent 30 minutes on this and di...
How can I autoformat/indent C code in vim?
...h spaces or vice-versa, putting spaces around operations however you like (converting if(x<2) to if ( x<2 ) if that's how you like it), putting braces on the same line as function definitions, or moving them to the line below, etc. All the options are controlled by command line parameters.
In...
How does the Windows Command Interpreter (CMD.EXE) parse scripts?
...le scanning for a :label, <Ctrl-Z>, is treated as itself - it is not converted to <LF>
Phase 1) Percent Expansion:
A double %% is replaced by a single %
Expansion of arguments (%*, %1, %2, etc.)
Expansion of %var%, if var does not exist replace it with nothing
Line is truncated at fi...