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Why does a base64 encoded string have an = sign at the end
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"One case in which padding characters are required is concatenating multiple Base64 encoded files."
– André Puel
Nov 30 '14 at 19:41
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Optimising Android application before release [closed]
...extView performs allocations internally whenever you call setText() with a CharSequence. But it doesn't allocate anything with the setText(char[] text, int start, int len) variant. This isn't documented, and no one answered when I asked about it.
There are many ones like this. And this is one of t...
How to find gaps in sequential numbering in mysql?
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Here's version that works on table of any size (not just on 100 rows):
SELECT (t1.id + 1) as gap_starts_at,
(SELECT MIN(t3.id) -1 FROM arrc_vouchers t3 WHERE t3.id > t1.id) as gap_ends_at
FROM arrc_vouchers t1
WHERE NOT EXISTS (SELECT t2.id FROM arrc_vouchers t2 WHERE t2.id = t1.id + ...
Remove all classes that begin with a certain string
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Careful with this one. Word boundary splits on dash character ('-') and dots and others, so class names like "bg.a", "bg-a" etc. will not be removed but replaced with ".a", "-a" etc. So if you have classnames with punctuation characters you may run into trouble by just running...
PHP Replace last occurrence of a String in a String?
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This works as long as there isn't any repeated characters. In my situation I'm striping the page number off the archive date so I have "2015-12/2" and it takes all / and all 2 off the end becoming "2015-1".
– Mike
Jun 3 '16 at 21:00
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How do I get the color from a hexadecimal color code using .NET?
...n error checking (colorcode should be a hexadecimal value of either 6 or 8 characters)
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Test if a string contains any of the strings from an array
...ils: for (int i = 0; i < searchStrs.length; i++) { CharSequenceUtils.indexOf(str, search, 0); ....
– alfonx
Nov 17 '15 at 22:45
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How does this site infecting script work?
...replace(/#|\$|@|\^|&|\(|\)|\!/ig, '').
It removes most of the special characters, turning it into a normal URL:
evil://dyndns-org.gamestop.com.mybestyouxi-cn.genuinehollywood.ru:8080/softonic.com/softonic.com/google.com/livejasmin.com/videosz.com/
(I manually changed http: to evil:)
Note th...
SELECT INTO Variable in MySQL DECLARE causes syntax error?
I´d like to SELECT a single value into a variable. I´d tried to following:
11 Answers
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What is a vertical tab?
What was the original historical use of the vertical tab character ( \v in the C language, ASCII 11)?
10 Answers
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