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Require returns an empty object
...s java. However, here, you are trying to use the object before its been built (in the extend)
– B T
May 26 '14 at 17:55
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How to create circle with Bézier curves?
...nding boxes of the Bézier curves.
To see yourself, I'm presenting my results:
The 1-curve graph (which looks like a drop squeezed in a corner, just for completeness) :
The 2-curve graph:
The 3-curve graph:
The 4-curve graph:
(I wanted to put the SVG or PDF here, but that isn't supported)
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How to remove last n characters from every element in the R vector
...o timezones together, and the as.Date function is returning unexpected results (day earlier for BST dates) - therefore I wanted to remove the timezone stamp, turns out I have to do -0 and it disappears, together with hours
– LucasSeveryn
May 1 '14 at 17:55
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How can I copy & paste, or duplicate, an existing project?
...s a config file for each job located on the master under HUDSON_HOME/jobs/<job name>/config.xml
– Dave Bacher
Jun 28 '10 at 18:48
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How to print out the method name and line number and conditionally disable NSLog?
... That can happen with macros in general; some macros yield multiple lines. Just another argument to always use braces ;-).
– diederikh
Mar 30 '10 at 19:34
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Track the time a command takes in UNIX/LINUX?
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Yes, use time <command>, such as
time ls
Consult man time for more options. Link.
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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
...r in loop to enumerate over an array. Never. Use good old for(var i = 0; i<arr.length; i++).
The reason behind this is the following: each object in JavaScript has a special field called prototype. Everything you add to that field is going to be accessible on every object of that type. Suppose y...
Calculate difference between two datetimes in MySQL
...9-02-20 23:46:00","2019-02-19 23:45:00")
gives: 24:01:00
and datetime1 < datetime2
SELECT TIMEDIFF("2019-02-19 23:45:00","2019-02-20 23:46:00")
gives: -24:01:00
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Selecting multiple classes with jQuery
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$('.myClass, .myOtherClass').removeClass('theclass');
You must add the multiple selectors all in the first argument to $(), otherwise you are giving jQuery a context in which to search, which is not what you want.
It's the same as you would do in CSS.
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Adding a user to a group in django
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@MinhThai the default value for a reverse relation field is <content_type>_set when related_name is not set on the field.
– sox with Monica
Oct 22 '19 at 9:45
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