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Check if value already exists within list of dictionaries?
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answered Oct 9 '10 at 19:16
Mark ByersMark Byers
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How to configure MongoDB Java driver MongoOptions for production use?
...ts this number per app server).
There is no need to set this higher than 100 in most cases but this setting is one of those "test it and see" things. Do note that you will have to make sure you set this low enough so that the total amount of connections to your server do not exceed
db.serverStat...
Java: random long number in 0
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answered Mar 30 '10 at 14:55
kennytmkennytm
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Finding the index of an item in a list
...ster than straight l.index(999_999), because the former only has to search 10 entries, while the latter searches a million:
>>> import timeit
>>> timeit.timeit('l.index(999_999)', setup='l = list(range(0, 1_000_000))', number=1000)
9.356267921015387
>>> timeit.timeit('l.in...
Binary search (bisection) in Python
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answered Feb 10 '10 at 2:05
Dave AbrahamsDave Abrahams
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Count with IF condition in MySQL query
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@mojuba not 100% the same, your trick returns null when COUNT (no conditions) would've returned 0. When COUNT would've returned anything but 0, but the SUM does return 0, your trick returns 0.
– Robin Kanters
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Node.js: Difference between req.query[] and req.params
...to change it to another?
– John
Jun 10 '15 at 2:00
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How to convert a boolean array to an int array
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answered Jul 6 '13 at 19:10
BrenBarnBrenBarn
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Can vim monitor realtime changes to a file
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103
You can :set autoread so that vim reads the file when it changes. However (depending on your p...
JavaScript variables declare outside or inside loop?
...ou've got yourself an accidental global.
In particular:
for (var i; i<100; i++)
do something;
for (var i; i<100; i++)
do something else;
Crockford will recommend you remove the second var (or remove both vars and do var i; above), and jslint will whinge at you for this. But IMO it...