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Cannot truncate table because it is being referenced by a FOREIGN KEY constraint?
Using MSSQL2005, can I truncate a table with a foreign key constraint if I first truncate the child table (the table with the primary key of the FK relationship)?
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How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
...NSimple's ALIAS in BIND?
– wlf
Aug 30 '13 at 8:30
1
Don't think you can. It's a custom feature.
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How to find if a given key exists in a C++ std::map
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edited Aug 28 '13 at 9:05
answered Dec 21 '09 at 12:58
a...
defaultdict of defaultdict?
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602
Yes like this:
defaultdict(lambda: defaultdict(int))
The argument of a defaultdict (in this ...
Passing variable number of arguments around
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10 Answers
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Active
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Get loop counter/index using for…of syntax in JavaScript
...tion (value, i) {
console.log('%d: %s', i, value);
});
// Outputs:
// 0: 123
// 1: 15
// 2: 187
// 3: 32
Or ES6’s Array.prototype.entries, which now has support across current browser versions:
for (const [i, value] of myArray.entries()) {
console.log('%d: %s', i, value);
}
For itera...
How to get next/previous record in MySQL?
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edited Jul 10 '12 at 10:53
Vimalnath
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How do I get the first n characters of a string without checking the size or going out of bounds?
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Here's a neat solution:
String upToNCharacters = s.substring(0, Math.min(s.length(), n));
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think ...