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Rails raw SQL example
...ails? Because When I deploy this code in heroku,there is a request timeout error.I think this will be faster if I use raw sql.
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Swift Bridging Header import issue
...ed a bridging header and added to my project. Unfortunately, the following error occurred:
19 Answers
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Appending a line to a file only if it does not already exist
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Add -s to ignore errors when the file does not exist, creating a new file with just that line.
– Frank
Mar 21 '18 at 18:09
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How do you calculate log base 2 in Java for integers?
...w);
if (pow != log(x, base))
System.out.println(String.format("error at %d^%d", base, pow));
if(pow!=0 && (pow-1) != log(x-1, base))
System.out.println(String.format("error at %d^%d-1", base, pow));
}
public static void main(String[] args) {
for (int base = 2; ba...
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
...ord abc1234, but I got mysqladmin: connect to server at 'localhost' failed error: 'Access denied for user 'root'@'localhost' (using password: NO)'. Thank you so much!
– Sibbs Gambling
Feb 21 '14 at 23:18
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Determine Whether Integer Is Between Two Other Integers?
...e(1,4) is False. So better use the 1 >= r <= 4 as it avoids possible errors by newcomers
– tripplet
Jun 26 '14 at 8:01
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ElasticSearch: Unassigned Shards, how to fix?
..., something else is probably wrong, so look in your Elasticsearch logs for errors. If you see EsRejectedExecutionException your thread pools may be too small.
Finally, you can explicitly reassign a shard to a node with the reroute API.
# Suppose shard 4 of index "my-index" is unassigned, so you wa...
Add vertical whitespace using Twitter Bootstrap?
What's the best way to add vertical whitespace using Twitter's Bootstrap?
13 Answers
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Django TemplateDoesNotExist?
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I had an embarrassing problem...
I got this error because I was rushing and forgot to put the app in INSTALLED_APPS. You would think Django would raise a more descriptive error.
share
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How to get a microtime in Node.js?
...* 1000000 + hrTime[1] / 1000)
(Thanks to itaifrenkel for pointing out an error in the conversion above.)
In modern browsers, time with microsecond precision is available as performance.now. See https://developer.mozilla.org/en-US/docs/Web/API/Performance/now for documentation.
I've made an imple...