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1. How to view the entire Rails console... How to view the entire Rails console history?

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   puts Readline::HISTORY.to_a

2. Ruby Integer::MAX and Integer::MIN Ruby Integer::MAX and Integer::MIN

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   class Integer

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     N_BYTES = [42].pack('i').size

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     N_BITS = N_BYTES * 16

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     MAX = 2 ** (N_BITS - 2) - 1

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     MIN = -MAX - 1

3. rubocop.rb rubocop.rb

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   # Rubocop's Metrics/AbcSize metric is disabled for 

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   # this method as Rubocop determines this method to 

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   # be too complex while there's no way to make it 

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   # less "complex" without introducing extra methods

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   # (which actually will make things _more_ complex).

4. md5.js md5.js

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   MD5 = function(e) {

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       function h(a, b) {

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           var c, d, e, f, g;

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           e = a & 2147483648;

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           f = b & 2147483648;

5. pull_request.txt pull_request.txt

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   We have a policy of not adding new methods to Ruby

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   core classes unless it would benefit the framework

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   implementation or the large majority of 

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   applications. For most cases I believe the required

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   keyword arguments are enough. This is actually the 

6. Ruby number formatting Ruby number formatting

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   # g limits the number of displayed digits

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   "%.2g" % 1.234 # => 1.2

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   "%.2g" % 123 # => 1.2e+02

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   "%g" % 1000000000 # => 1e+09

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