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Can hash tables really be O(1)?
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edited May 5 '10 at 8:21
answered May 5 '10 at 7:51
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How to split the name string in mysql?
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I've seperated this answer into two(2) methods. The first method will separate your fullname field into first, middle, and last names. The middle name will show as NULL if there is no middle name.
SELECT
SUBSTRING_INDEX(SUBSTRING_INDEX(fullname, ' ', 1), ...
Why can I change value of a constant in javascript
...nst x = {};
x.foo = 'bar';
console.log(x); // {foo : 'bar'}
x.foo = 'bar2';
console.log(x); // {foo : 'bar2'}
and this:
const y = [];
y.push('foo');
console.log(y); // ['foo']
y.unshift("foo2");
console.log(y); // ['foo2', 'foo']
y.pop();
console.log(y); // ['foo2']
but neither of...
Read values into a shell variable from a pipe
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edited Apr 28 '14 at 9:19
fedorqui 'SO stop harming'
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Find nearest latitude/longitude with an SQL query
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219
SELECT latitude, longitude, SQRT(
POW(69.1 * (latitude - [startlat]), 2) +
POW(69.1 * ...
how to create a Java Date object of midnight today and midnight tomorrow?
...pare against dates from today at 00:00am (midnight early this morning) to 12:00pm (midnight tonight).
19 Answers
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Get exit code of a background process
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12 Answers
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Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
...tiple courses, books, and jobs, I have seen text fields defined as VARCHAR(255) as kind of the default for "shortish" text. Is there any good reason that a length of 255 is chosen so often, other than being a nice round number ? Is it a holdout from some time in the past when there was a good rea...
Find object by id in an array of JavaScript objects
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