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Infinite scrolling with React JS
...te.recordsPerBody, this.state.total - 1);
var displayStart = Math.max(0, Math.floor(scroll / this.state.recordHeight) - this.state.recordsPerBody * 1.5);
var displayEnd = Math.min(displayStart + 4 * this.state.recordsPerBody, this.state.total - 1);
this.setState({
visibleStart:...
Do I encode ampersands in ?
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answered Sep 14 '10 at 1:39
zneakzneak
120k3838 gold badges231231 silver badges301301 bronze badges
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check if directory exists and delete in one command unix
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answered Jun 20 '16 at 13:32
Nick GrealyNick Grealy
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SQL order string as number
...h forces a conversion to number
select col from yourtable
order by col + 0
BTW MySQL converts strings from left to right. Examples:
string value | integer value after conversion
--------------+--------------------------------
'1' | 1
'ABC' | 0 /* the string does not cont...
In Unix, can I run 'make' in a directory without cd'ing to that directory first?
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edited Jan 17 '09 at 16:14
Svante
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What is the format specifier for unsigned short int?
...he "%h" modifier:
scanf("%hu", &length);
^
ISO/IEC 9899:201x - 7.21.6.1-7
Specifies that a following d , i , o , u , x , X , or n conversion
specifier applies to an argument with type pointer to short or
unsigned short.
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Permanently adding a file path to sys.path in Python
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answered Sep 4 '12 at 6:20
BrenBarnBrenBarn
197k2727 gold badges348348 silver badges337337 bronze badges
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Haskell: Where vs. Let
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40
1: The problem in the example
f :: State s a
f = State $ \x -> y
where y = ... x ...
i...
Regex for numbers only
...$" if you need to match more than one digit.
Note that "\d" will match [0-9] and other digit characters like the Eastern Arabic numerals ٠١٢٣٤٥٦٧٨٩. Use "^[0-9]+$" to restrict matches to just the Arabic numerals 0 - 9.
If you need to include any numeric representations other than ju...
Case statement with multiple values in each 'when' block
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answered Apr 17 '12 at 19:00
Charles CaldwellCharles Caldwell
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