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How to determine if a number is odd in JavaScript
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360
Use the below code:
function isOdd(num) { return num % 2;}
console.log("1 is " + isOdd(1))...
Can PostgreSQL index array columns?
... CREATE TABLE "Test"("Column1" int[]);
INSERT INTO "Test" VALUES ('{10, 15, 20}');
INSERT INTO "Test" VALUES ('{10, 20, 30}');
CREATE INDEX idx_test on "Test" USING GIN ("Column1");
-- To enforce index usage because we have only 2 records for this test...
SET enable_seqscan ...
Simple way to create matrix of random numbers
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Take a look at numpy.random.rand:
Docstring: rand(d0, d1, ..., dn)
Random values in a given shape.
Create an array of the given shape and propagate it with random
samples from a uniform distribution over [0, 1).
>>> import numpy as np
>>> np....
Validating parameters to a Bash script
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10 Answers
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Code for a simple JavaScript countdown timer?
I want to use a simple countdown timer starting at 30 seconds from when the function is run and ending at 0. No milliseconds. How can it be coded?
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Why is printing to stdout so slow? Can it be sped up?
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I ran your file writing test on my machine, and with buffering, it also 0.05s here for 100,000 lines.
However, with the above modifications to write unbuffered, it takes 40 seconds to write only 1,000 lines to disk. I gave up waiting for 100,000 lines to write, but extrapolating from the previou...
How to print a string in fixed width?
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EDIT 2013-12-11 - This answer is very old. It is still valid and correct, but people looking at this should prefer the new format syntax.
You can use string formatting like this:
>>> print '%5s' % 'aa'
aa
>>>...
Font Awesome not working, icons showing as squares
...;v=3.2.1')
– Braulio
Sep 16 '13 at 10:29
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UITableView load more when scrolling to bottom like Facebook application
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103
You can do that by adding a check on where you're at in the cellForRowAtIndexPath: method. This...
How to get an enum which is created in attrs.xml in code
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101
There does not seem to be an automated way to get a Java enum from an attribute enum - in Java ...