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Java regex email
First of all, I know that using regex for email is not recommended but I gotta test this out.
20 Answers
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Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
...iption. But you can find some in AWS EC2 documentation, bullet point 4. :
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AccessingInstancesLinux.html
Use the ssh command to connect to the instance. You'll specify the private key (.pem) file and user_name@public_dns_name. For Amazon Linux, t...
Get local IP address in node.js
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https://github.com/indutny/node-ip
var ip = require("ip");
console.dir ( ip.address() );
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What does an underscore in front of an import statement mean?
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https://golang.org/doc/effective_go.html#blank
It's either a work in progress, or imported for side effects. In this case, I believe it's for the side effects, as described in the doc.
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How does Facebook disable the browser's integrated Developer Tools?
...ctual code is pretty similar to @joeldixon66's link; ours is a little more complicated for no good reason.
Chrome wraps all console code in
with ((console && console._commandLineAPI) || {}) {
<code goes here>
}
... so the site redefines console._commandLineAPI to throw:
Object.d...
How to set focus on input field?
...n attribute autofocus.
<input type="text" name="fname" autofocus>
http://www.w3schools.com/tags/att_input_autofocus.asp
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Is it possible to make the -init method private in Objective-C?
...creating singletons. It's virtually always unnecessary and is just adding complication for no real significant advantage.
Instead, just write your code such that your +sharedWhatever method is how you access a singleton, and document that as the way to get the singleton instance in your header. T...
Making 'git log' ignore changes for certain paths
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Using Django time/date widgets in custom form
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The growing complexity of this answer over time, and the many hacks required, probably ought to caution you against doing this at all. It's relying on undocumented internal implementation details of the admin, is likely to break again in...
In log4j, does checking isDebugEnabled before logging improve performance?
...ava 8, you don't have to use isDebugEnabled() to improve the performance.
https://logging.apache.org/log4j/2.0/manual/api.html#Java_8_lambda_support_for_lazy_logging
import java.util.logging.Logger;
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Logger.getLogger("hello").info(() -> "Hello " + name);
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