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How to atomically delete keys matching a pattern using Redis
...g like this
EVAL "return redis.call('del', unpack(redis.call('keys', ARGV[1])))" 0 prefix:[YOUR_PREFIX e.g delete_me_*]
Warning: As the Redis document says, because of performance maters, keys
command should not use for regular operations in production, this
command is intended for debuggi...
Change navbar color in Twitter Bootstrap
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12 Answers
12
Active
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How to detect the end of loading of UITableView
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21 Answers
21
Active
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AWK: Access captured group from line pattern
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183
That was a stroll down memory lane...
I replaced awk by perl a long time ago.
Apparently the...
Python - Create a list with initial capacity
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128
def doAppend( size=10000 ):
result = []
for i in range(size):
message= "some u...
Confusion between factor levels and factor labels
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131
Very short : levels are the input, labels are the output in the factor() function. A factor ha...
How to determine the number of days in a month in SQL Server?
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116
You can use the following with the first day of the specified month:
datediff(day, @date, dat...
What is “:-!!” in C code?
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1711
This is, in effect, a way to check whether the expression e can be evaluated to be 0, and if ...
How to return an array from JNI to Java?
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120
If you've examined the documentation and still have questions that should be part of your init...
What Does 'Then' Really Mean in CasperJS
...r = require('casper').create();
casper.start();
casper.then(function step1() {
this.echo('this is step one');
});
casper.then(function step2() {
this.echo('this is step two');
});
casper.thenOpen('http://google.com/', function step3() {
this.echo('this is step 3 (google.com is loaded...