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Why do I get a “Null value was assigned to a property of primitive type setter of” error message whe
...ull value cannot be assigned to a primitive type, like int, long, boolean, etc. If the database column that corresponds to the field in your object can be null, then your field should be a wrapper class, like Integer, Long, Boolean, etc.
The danger is that your code will run fine if there are no nu...
Cross Domain Form POSTing
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What does “@private” mean in Objective-C?
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Prepend text to beginning of string
...aterial changes of note that you made to the tests? A prepend is just the ordered half of string concatenation. Also, for jsPerf, you don't need to throw the test cases in a loop; jsPerf call each method thousands of times to get a baseline of scores. Perf tests optimize particular scenarios, and...
Should I use a data.frame or a matrix?
...ables) can be expected to be of different types (numeric/character/logical etc.). Matrices are for data of the same type.
Consequently, the choice matrix/data.frame is only problematic if you have data of the same type.
The answer depends on what you are going to do with the data in data.frame/ma...
How to view UTF-8 Characters in VIM or Gvim
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In Linux, Open the VIM configuration file
$ sudo -H gedit /etc/vim/vimrc
Added following lines:
set fileencodings=utf-8,ucs-bom,gb18030,gbk,gb2312,cp936
set termencoding=utf-8
set encoding=utf-8
Save and exit, and terminal command:
$ source /etc/vim/vimrc
At this time VIM wil...
Disable Automatic Reference Counting for Some Files
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How to view or edit localStorage
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The project cannot be built until the build path errors are resolved.
... a simpler way, i have seen is to just do a minor change in the import order and eclipse will rebuild the build path and all errors should be resolved.
– user2757415
May 6 at 16:38
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Lightweight Javascript DB for use in Node.js [closed]
...mpatibilities (3 years in js dev is an eternity), issues that get ignored, etc. The right amount of stars but it doesn't scream fresh.
– Carles Alcolea
Dec 27 '18 at 10:35
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