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Generate random string/characters in JavaScript
I want a 5 character string composed of characters picked randomly from the set [a-zA-Z0-9] .
77 Answers
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Matching an empty input box using CSS
... this answer should not be the top one. see the answer below stackoverflow.com/a/35593489/11293716
– sijanec
May 30 at 18:38
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How do I correctly clone a JavaScript object?
...appy to be wrong!
When I had to implement general deep copying I ended up compromising by assuming that I would only need to copy a plain Object, Array, Date, String, Number, or Boolean. The last 3 types are immutable, so I could perform a shallow copy and not worry about it changing. I further ass...
Reading JSON from a file?
...In that case, there is some invalid json in that file. For that, I would recommend running the file through a json validator.
There are also solutions for fixing json like for example How do I automatically fix an invalid JSON string?.
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Multi-key dictionary in c#? [duplicate]
...y run into scalability issues.
Also, you get to avoid nulls which tend to complicate matters (and if you really want nulls, you just make your Tuple<> nullable). Slightly offtopic, am I the only one annoyed at the framework-level lack of support for non-null references? I work on large proj...
What's faster, SELECT DISTINCT or GROUP BY in MySQL?
...ed column, mysql, group by was about 6x slower than distinct with a fairly complicated query. Just adding this as a datapoint. About 100k rows. So test it and see for yourselves.
– Lizardx
Feb 21 '16 at 22:32
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How do I prevent a Gateway Timeout with FastCGI on Nginx
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How to attach file to a github issue?
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You upload it somewhere and add the link in a comment. GitHub's Issues is rather primitive and doesn't allow attaching files.
Update: You can post images to GitHub issues now. The easiest way is to copy the image (right click, Copy image) and then paste it into the tex...
best way to add license section to iOS settings bundle
My iOS application uses a number of third party components licensed under Apache 2.0 and similar licenses, which requires me to include various bits of text, this kind of thing:
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Getting the location from an IP address [duplicate]
....io/8.8.8.8
{
"ip": "8.8.8.8",
"hostname": "google-public-dns-a.google.com",
"loc": "37.385999999999996,-122.0838",
"org": "AS15169 Google Inc.",
"city": "Mountain View",
"region": "CA",
"country": "US",
"phone": 650
}
Here's a PHP example:
$ip = $_SERVER['REMOTE_ADDR'];
$details ...