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What is the difference between gsub and sub methods for Ruby Strings
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Ray ToalRay Toal
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Reference: Comparing PHP's print and echo
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3 0 > PRINT ~0 7
1 PRINT ~1 ~0
2 PRINT ~2 ~...
Booleans, conditional operators and autoboxing
...nd operand to boolean)
E2: `true ? null : false` - Boolean (autoboxing of 3rd operand to Boolean)
See Java Language Specification, section 15.25 Conditional Operator ? :
For E1, the types of the 2nd and 3rd operands are Boolean and boolean respectively, so this clause applies:
If one of the...
psycopg2: insert multiple rows with one query
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Alex Riley
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answered Apr 13 '12 at 19:53
ant32ant32
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Check if string matches pattern
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483
import re
pattern = re.compile("^([A-Z][0-9]+)+$")
pattern.match(string)
Edit: As noted in the...
How to get a specific “commit” of a gem from github?
...m 'rails', :git => 'git://github.com/rails/rails.git', :branch => '2-3-stable'
gem 'rails', :git => 'git://github.com/rails/rails.git', :tag => 'v2.3.5'
Source: How to install gems from git repositories
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Separate REST JSON API server and client? [closed]
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136
At Boundless, we've gone deep with option #2 and rolled it out to thousands of students. Our se...
How does this CSS produce a circle?
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373
How does a border of 180 pixels with height/width-> 0px become a circle with a radius of...
How to remove the left part of a string?
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Starting in Python 3.9, you can use removeprefix:
'Path=helloworld'.removeprefix('Path=')
# 'helloworld'
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