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Uninstall old versions of Ruby gems
...# choose which ones you want to remove
gem uninstall rjb
# remove version 1.1.9 only
gem uninstall rjb --version 1.1.9
# remove all versions less than 1.3.4
gem uninstall rjb --version '<1.3.4'
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How can I multiply and divide using only bit shifting and adding?
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14 Answers
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iOS Image Orientation has Strange Behavior
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12 Answers
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Length of generator output [duplicate]
...ou have a lazy infinite generator? For example:
def fib():
a, b = 0, 1
while True:
a, b = b, a + b
yield a
This never terminates but will generate the Fibonacci numbers. You can get as many Fibonacci numbers as you want by calling next().
If you really need to know the ...
Homebrew install specific version of formula?
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2611
TLDR: brew install postgresql@8.4.4 See answer below for more details.
*(I’ve re-edited my...
How to format time since xxx e.g. “4 minutes ago” similar to Stack Exchange sites
...nction timeSince(date) {
var seconds = Math.floor((new Date() - date) / 1000);
var interval = seconds / 31536000;
if (interval > 1) {
return Math.floor(interval) + " years";
}
interval = seconds / 2592000;
if (interval > 1) {
return Math.floor(interval) + " months";
}
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How do I convert a TimeSpan to a formatted string? [duplicate]
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14 Answers
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How to get the name of the calling method?
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213
puts caller[0]
or perhaps...
puts caller[0][/`.*'/][1..-2]
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Elastic Search: how to see the indexed data
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171
Probably the easiest way to explore your ElasticSearch cluster is to use elasticsearch-head.
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Access nested dictionary items via a list of keys?
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18 Answers
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