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How does UTF-8 “variable-width encoding” work?
...e stored using 2, 3, in fact,
up to 6 bytes.
Excerpt from The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)
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Show a number to two decimal places
...e decimal place (ie, it returns something that is not an integer, with the minimum number of decimal places possible to represent the number). So round(1,2) (or any level or precision) returns '1.0', because '1.00' would not be a valid float. To make numbers behave like strings, you need to use str...
What happens if you don't commit a transaction to a database (say, SQL Server)?
... your transaction logs begin to grow as they can not be truncated past the minimum LSN for an active transaction and if you are using snapshot isolation your version store in tempdb will grow for similar reasons.
You can use dbcc opentran to see details of the oldest open transaction.
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Finding the max/min value in an array of primitives using Java
...say is that if you sort the array (in ascending order), by definition, the minimum value will always be at the first position, a[0], and the maximum value will always be at the last position, [a.length-1].
– Jeff
Aug 27 '14 at 21:20
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Sleep for milliseconds
...resolution be 15-16 ms (even if the unit in the call is 1 ms) and thus the minimum time be 15-16 ms?
– Peter Mortensen
Oct 6 '17 at 17:38
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grep, but only certain file extensions
...tionally bundle arguments, reducing invocations of the called process to a minimum. find . \( -name \*.h -o -name \*.cpp \) -exec grep -H CP_Image {} + This is suggested but not highlighted in @fedorqui's answer below and is a worthwhile improvement. The -H argument to grep here is useful when fi...
High performance fuzzy string comparison in Python, use Levenshtein or difflib [closed]
...in the two strings.
Levenshtein uses Levenshtein algorithm it computes the minimum number of edits needed to transform one string into the other
Complexity
SequenceMatcher is quadratic time for the worst case and has expected-case behavior dependent in a complicated way on how many elements the s...
BrightnessTools 拓展：设置手机亮度的工具 - App Inventor 2 拓展 - 清泛I...
...ed to write/modify system settings.
Set the brightness of user's phone. Minimum value is 0.
ParamsTypeDescriptionBrightnessNumber (int)Set/Return the brightness depends on the given integer
Set brightness to adaptive or non-adaptive. Adaptive if true, otherwise non-adaptive.
ParamsType...
How to check if one DateTime is greater than the other in C#
...s and you have to set the Start date ( at this stage your End date has the minimum date value of 01/01/0001) - this solution did pass all my unit tests:
public DateTime Start
{
get { return _start; }
set
{
if (_end.Equals(DateTime.MinValue))
{...
How to get the focused element with jQuery?
... on any other browser. In my case, I am using it to make sure a field is a minimum of 4 characters and focused before acting. Once you enter the 4th number, it triggers. The field has an id of 'year'. I am using..
if( $('#year').val().length >= 4 && document.activeElement.id == "year" ) ...