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How to validate an email address in JavaScript

... for "RFC822" or "RFC2822" to get a proper regex. – Randal Schwartz Sep 8 '10 at 2:34 45 This doe...
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Sleep until a specific time/date

I want my bash script to sleep until a specific time. So, I want a command like "sleep" which takes no interval but an end time and sleeps until then. ...
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What does this square bracket and parenthesis bracket notation mean [first1,last1)?

I have seen number ranges represented as [first1,last1) and [first2,last2) . 4 Answers ...
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How to create multidimensional array

...2[0] == 'input3'; mixed.row2[1] == 'input4'; http://jsfiddle.net/z4Un3/ And if you're wanting to store DOM elements: var inputs = [ [ document.createElement('input'), document.createElement('input') ], [ document.createElement('input'), document.create...
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C# Regex for Guid

I need to parse through a string and add single quotes around each Guid value. I was thinking I could use a Regex to do this but I'm not exactly a Regex guru. ...
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Cannot ping AWS EC2 instance

...cho Request", I got confused by this for a moment. – Andy Jul 10 '18 at 15:23 ...
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How to downgrade or install an older version of Cocoapods

...s you can install a specific version of cocoa pods via the following command: sudo gem install cocoapods -v 0.25.0 You can use older installed versions with following command: pod _0.25.0_ setup share | ...
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How do I use boolean variables in Perl?

... @BlueWaldo: you can also use cmp and <=> when comparing and assigning the results of the comparison to a scalar. $var = $var1 cmp $var2; 'cmp' and '<=>' (used for numeric comparisons) returns -1, 0, or 1 if left argument is less than, equal to,...
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Bin size in Matplotlib (Histogram)

...specified by list of N+1 values where the first N give the lower bin edges and the +1 gives the upper edge of the last bin. Code: from numpy import np; from pylab import * bin_size = 0.1; min_edge = 0; max_edge = 2.5 N = (max_edge-min_edge)/bin_size; Nplus1 = N + 1 bin_list = np.linspace(min_edge...
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What optimizations can GHC be expected to perform reliably?

...ut I don't know what they all are, nor how likely they are to be performed and under what circumstances. 3 Answers ...