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MySQL Creating tables with Foreign Keys giving errno: 150
...h a value in the Parent table PK column(s). Check this with a query like:
SELECT COUNT(*) FROM Child LEFT OUTER JOIN Parent ON Child.FK = Parent.PK
WHERE Parent.PK IS NULL;
This must return zero (0) unmatched values. Obviously, this query is an generic example; you must substitute your table nam...
Convert string to title case with JavaScript
...;br />Output:
<br /><textarea name="output" readonly onclick="select(this)"></textarea>
</form>
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How to remove specific element from an array using python
... Thanks for pointing out that arrays aren't the same as lists. The selected answer doesn't work on arrays in 2.7.
– EL_DON
Feb 8 '17 at 18:37
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Check if a string is html or not
...bject|ol|optgroup|output|p|pre|progress|q|rp|rt|ruby|s|samp|script|section|select|small|span|strike|strong|style|sub|summary|sup|table|tbody|td|textarea|tfoot|th|thead|time|title|tr|track|tt|u|ul|var|video).*?<\/\2>/i.test(htmlStringHere)
This does proper validation as it contains ALL HTML ...
How to serialize SqlAlchemy result to JSON?
...oded before, it will encode it as 'None'.
A recursive, possibly-circular, selective implementation
Another alternative, probably better, is to be able to specify the fields you want to expand:
def new_alchemy_encoder(revisit_self = False, fields_to_expand = []):
_visited_objs = []
class ...
How to declare a friend assembly?
...y={1}",
assemblyName.Name,
string.Join("", assemblyName.GetPublicKey().Select(m => string.Format("{0:x2}", m))));
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How to generate all permutations of a list?
....permutations([1,2,3], r=2), which will generate all possible permutations selecting 2 elements: [(1, 2), (1, 3), (2, 1), (2, 3), (3, 1), (3, 2)]
– toto_tico
Aug 24 '17 at 8:49
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Move branch pointer to different commit without checkout
... they allow. I highly recommend using them for what they're good at (i.e. selectively staging hunks into/out of the index in git gui, and also just committing. (ctrl-s to add a signed-off: line, ctrl-enter to commit.)
gitk is great for keeping track of a few branches while you sort out your chang...
Parse large JSON file in Nodejs
...s answer with JSONStream + event-stream. I modified the JSONPath query to select only what I needed. This time the memory never went higher than 82MB, however, the whole thing now took 70 seconds to complete!
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PHP random string generator
...keyspace A string of all possible characters
* to select from
* @return string
*/
function random_str(
int $length = 64,
string $keyspace = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
): string {
if ($length < 1) {
throw new \Ran...