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Find the day of a week
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305
df = data.frame(date=c("2012-02-01", "2012-02-01", "2012-02-02"))
df$day <- weekdays(as.Da...
How can I shift-select multiple checkboxes like GMail?
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13 Answers
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Does git return specific return error codes?
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chrisaycockchrisaycock
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How is attr_accessible used in Rails 4?
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Rory O'Kane
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answered Jun 28 '13 at 18:30
Pierre-Louis ...
What's the simplest way to print a Java array?
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31 Answers
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String comparison using '==' vs. 'strcmp()'
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13 Answers
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Count number of matches of a regex in Javascript
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/*
* Example
*/
const count = (str) => {
const re = /[a-z]{3}/g
return ((str || '').match(re) || []).length
}
const str1 = 'abc, def, ghi'
const str2 = 'ABC, DEF, GHI'
console.log(`'${str1}' has ${count(str1)} occurrences of pattern '/[a-z]{3}/g'`)
console.log(`'${str2}' ...
What is the difference between Server.MapPath and HostingEnvironment.MapPath?
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answered Jun 3 '09 at 11:43
Philippe LeybaertPhilippe Leybaert
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MySQL: Quick breakdown of the types of joins [duplicate]
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3 Answers
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C# loop - break vs. continue
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Michael Stum♦Michael Stum
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