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Why can I add named properties to an array as if it were an object?
... javascript is an object, so you can "abuse" an Array object by setting arbitrary properties on it. This should be considered harmful though. Arrays are for numerically indexed data - for non-numeric keys, use an Object.
Here's a more concrete example why non-numeric keys don't "fit" an Array:
var...
What is sandboxing?
I have read the Wikipedia article , but I am not really sure what it means, and how similar it is to version control .
5...
Syntax behind sorted(key=lambda: …)
I don't quite understand the syntax behind the sorted() argument:
9 Answers
9
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Build an iOS app without owning a mac? [closed]
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Let me tell you step by step few years back I was in same situation.
So We have two Phases
iPhone/iPad (iOS) app development
iPhone/iPad (iOS) app development and Publish to iTunes Store
1. iPhone/iPad (iOS) app development
So If you just want to develop iOS apps you don't want...
Schrödingers MySQL table: exists, yet it does not
...sue when the data file is missing in the data directory but the table definition file exists or vise-versa. If you're using innodb_file_per_table, check the data directory to make sure you have both an .frm file and .ibd file for the table in question. If it's MYISAM, there should be a .frm, .MYI an...
What does the PHP error message “Notice: Use of undefined constant” mean?
PHP is writing this error in the logs: "Notice: Use of undefined constant".
9 Answers
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renderpartial with null model gets passed the wrong type
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I find this very counterintuitive so I added an "issue", vote on it if you agree: aspnet.codeplex.com/workitem/8872
– pbz
Jun 28 '11 at 22:26
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Differences between MySQL and SQL Server [closed]
...t the top-n section. In MySQL:
SELECT age
FROM person
ORDER BY age ASC
LIMIT 1 OFFSET 2
In SQL Server (T-SQL):
SELECT TOP 3 WITH TIES *
FROM person
ORDER BY age ASC
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What is the difference between window, screen, and document in Javascript?
...so can be treated as the root of the document object model. You can access it as window
window.screen or just screen is a small information object about physical screen dimensions.
window.document or just document is the main object of the potentially visible (or better yet: rendered) document ob...
Hidden features of Python [closed]
...; x <= 9
True
>>> 5 == x > 4
True
In case you're thinking it's doing 1 < x, which comes out as True, and then comparing True < 10, which is also True, then no, that's really not what happens (see the last example.) It's really translating into 1 < x and x < 10, and x <...