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OS X: equivalent of Linux's wget
...n a stock OS X system? (installing third-party software is not an option, for this has to run on a lot of different systems which I don't have control on).
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What does ^M character mean in Vim?
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Unix uses 0xA for a newline character. Windows uses a combination of two characters: 0xD 0xA. 0xD is the carriage return character. ^M happens to be the way vim displays 0xD (0x0D = 13, M is the 13th letter in the English alphabet).
You ca...
maxlength ignored for input type=“number” in Chrome
The maxlength attribute is not working with <input type="number"> . This happens only in Chrome.
22 Answers
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jquery ui Dialog: cannot call methods on dialog prior to initialization
I have an app on jquery 1.5 with dialogs worked fine.
While I have a lot of .live handlers, I changed this to .on.
For that, I have to update jquery (now 1.8.3 an jquerui 1.9.1).
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How to go from Blob to ArrayBuffer
...b from which the data can be retrieved in several ways. The OP only asked for ArrayBuffer, and here's a demonstration of it.
var blob = GetABlobSomehow();
// NOTE: you will need to wrap this up in a async block first.
/* Use the await keyword to wait for the Promise to resolve */
await new Respons...
Calculating frames per second in a game
What's a good algorithm for calculating frames per second in a game? I want to show it as a number in the corner of the screen. If I just look at how long it took to render the last frame the number changes too fast.
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Colorized grep — viewing the entire file with highlighted matches
I find grep 's --color=always flag to be tremendously useful. However, grep only prints lines with matches (unless you ask for context lines). Given that each line it prints has a match, the highlighting doesn't add as much capability as it could.
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How do I call a JavaScript function on page load?
...nction, with whatever parameters you give it. And, of course, you can run more than one function from inside the anonymous function.
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For every character in string
How would I do a for loop on every character in string in C++?
9 Answers
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What is a regular expression which will match a valid domain name without a subdomain?
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Well, it's pretty straightforward a little sneakier than it looks (see comments), given your specific requirements:
/^[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9]\.[a-zA-Z]{2,}$/
But note this will reject a lot of valid domains.
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