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How to print a string in fixed width?
...aa
>>> print '%5s' % 'aaaaa'
aaaaa
Basically:
the % character informs python it will have to substitute something to a token
the s character informs python the token will be a string
the 5 (or whatever number you wish) informs python to pad the string with spaces up to 5 characters.
I...
g++ undefined reference to typeinfo
... c++filt <mangledNameVariable> to get it in a readable form. The typeinfo error with a class name was in my case because of a missing virtual destructor implementation in some base class.
– chmike
Jul 10 '13 at 14:24
...
Is there an easy way to check the .NET Framework version?
...vert.ToDouble(version_names[version_names.Length - 1].Remove(0, 1), CultureInfo.InvariantCulture);
int SP = Convert.ToInt32(installed_versions.OpenSubKey(version_names[version_names.Length - 1]).GetValue("SP", 0));
For .NET 4.5+ (from official documentation):
using System;
using Microsoft.Win32;
...
How can I verify a Google authentication API access token?
...nd post it and get the response
https://www.googleapis.com/oauth2/v1/tokeninfo?access_token=accessToken
you can try in address bar in browsers too, use httppost and response in java also
response will be like
{
"issued_to": "xxxxxxxxxxxxx-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.apps.googleuser...
Print all the Spring beans that are loaded
...autoconfigure.web.JacksonHttpMessageConvertersConfiguration",
"spring.info-org.springframework.boot.autoconfigure.info.ProjectInfoProperties",
"org.springframework.boot.autoconfigure.info.ProjectInfoAutoConfiguration",
"multipartResolver",
"org.springframework.boot.autoconfigure....
Get bitcoin historical data [closed]
...gaps in bitcoincharts.com data. Also note that there is no tick "buy/sell" information.
– Petr Javorik
Jul 10 '17 at 16:01
2
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How can I find the method that called the current method?
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In C# 5 you can get that information using caller info:
//using System.Runtime.CompilerServices;
public void SendError(string Message, [CallerMemberName] string callerName = "")
{
Console.WriteLine(callerName + "called me.");
}
You can als...
Git, rewrite previous commit usernames and emails
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Yeah, that would change all commits to the new author info.
– ewall
May 28 '10 at 19:31
10
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Postgres - FATAL: database files are incompatible with server
...esql-upgrade-database
The above command is taken from the output of brew info postgres
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How to create index on JSON field in Postgres?
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Found:
CREATE TABLE publishers(id INT, info JSON);
CREATE INDEX ON publishers((info->>'name'));
As stated in the comments, the subtle difference here is ->> instead of ->. The former one returns the value as text, the latter as a JSON object.
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