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PostgreSQL error: Fatal: role “username” does not exist
...m user of the same name (h9uest in your case):
sudo -u postgres -i
As recommended here or here.
Then try again. Type exit when done with operating as system user postgres.
Or execute the single command createuser as postgres with sudo, like demonstrated by drees in another answer.
The point is...
Soft hyphen in HTML ( vs. ­)
...answered Oct 22 '08 at 19:49
MarcoMarco
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Best practices for Storyboard login screen, handling clearing of data upon logout
..."Main", bundle: Bundle.main).instantiateViewController(withIdentifier: "WelcomeNavigation")
self.window?.rootViewController = rootController
}
return true
In Sign up view controller:
@IBAction func actionSignup(_ sender: Any) {
let appDelegateTemp = UIApplication.shared.delegate ...
jQuery OR Selector?
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Use a comma.
'.classA, .classB'
You may choose to omit the space.
share
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Convert a list to a data frame
... type. Passing through a matrix means that all data will be coerced into a common type. I.e. if you have one column of character data and one column of numeric data the numeric data will be coerced to string by matrix() and then both to factor by data.frame().
– Ian Sudbery
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Ruby on Rails: how to render a string as HTML?
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UPDATE
For security reason, it is recommended to use sanitize instead of html_safe. Link
What's happening is that, as a security measure, Rails is escaping your string for you because it might have malicious code embedded in it. But if you tell Rails that yo...
How to stop a program running under Eclipse?
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Align contents inside a div
...ned a width, with ‘auto’ left and right margins. This is the standards-compliant way that works everywhere except IE5.x.
<div style="width: 50%; margin: 0 auto;">Hello</div>
For this to work in IE6, you need to make sure Standards Mode is on by using a suitable DOCTYPE.
If you re...
Git: How to update/checkout a single file from remote origin master?
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Super handy, this worked great. I needed to get a composer.json file and run an update before I updated the rest of the site in production. If I had manually put the composer.json/lock files in place, when I did a pull, it would conflict saying the files already existed. B...
Batch files: How to read a file?
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You can use the for command:
FOR /F "eol=; tokens=2,3* delims=, " %i in (myfile.txt) do @echo %i %j %k
Type
for /?
at the command prompt. Also, you can parse ini files!
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