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How can I setup & run PhantomJS on Ubuntu?
...get 1.9.7
If anyone sees any problems with what I've done, please let me know.
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“Ago” date/time functions in Ruby/Rails
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As of Rails 3 its now 10.minutes.ago instead of mins.
– cbron
Jan 13 '12 at 15:47
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What's the difference between the 'ref' and 'out' keywords?
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@Deebster you know, that metaphor never did anything to you, why must you torture it so? ;)
– Michael Blackburn
Aug 8 '11 at 16:09
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How to detect escape key press with pure JS or jQuery?
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@LachlanMcD - be aware (5 years later!) that .unbind is now deprecated as of jQuery 3.0... you should use .off
– freefaller
Apr 24 '18 at 14:07
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Get current time in seconds since the Epoch on Linux, Bash
...e used to compute elapsed times
$ printf -v beg '%(%s)T\n' -2
$ printf -v now '%(%s)T\n' -1
$ echo beg=$beg now=$now elapsed=$((now-beg))
beg=1583949610 now=1583953032 elapsed=3422
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How does the bitwise complement operator (~ tilde) work?
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How does the machine know it is getting a two complement negative number instead of a higher positive number? Is it because of the type system of the respective language indicating that the type is a signed int versus unsigned?
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Should I test private methods or only public ones? [closed]
...c there (Method Object). Then I can easily test the previously-private-but-now-public method that now lives on its own class.
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Explain ExtJS 4 event handling
...k event handler.
Let's retrieve Element:
var el = Ext.get('test_node');
Now let's check docs for click event. It's handler may have three parameters:
click( Ext.EventObject e, HTMLElement t, Object eOpts )
Knowing all this stuff we can assign handler:
// event name event handler...
Understanding how recursive functions work
...hose individually and when you are done you add the totals together.. Well now if each of you find some friend and split the buckets further, then you just need to wait for these other friends to figure out their totals, bring it back to each of you, you add it up. And so on. The special case is whe...
Count number of days between two dates
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Doesn't work for (Time.zone.now.to_date - 23.hours.ago.to_date).to_i, it gives 1 and should be 0
– Yuri Ghensev
Feb 4 '17 at 16:21
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