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Why is using 'eval' a bad practice?
...actice because eval and exec are frequently used in the wrong place.
EDIT 2:
It looks like some disagree that eval is 'very dangerous and insecure' in the OP case. That might be true for this specific case but not in general. The question was general and the reasons I listed are true for the gener...
Find MongoDB records where array field is not empty
...lution:
ME.find({ pictures: { $exists: true, $ne: [] } })
Since MongoDB 2.6 release, you can compare with the operator $gt but could lead to unexpected results (you can find a detailled explanation in this answer):
ME.find({ pictures: { $gt: [] } })
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SPAN vs DIV (inline-block)
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Danger14
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answered Oct 23 '09 at 2:11
cletuscletus
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How can I edit a view using phpMyAdmin 3.2.4?
I need to simply edit a very complicated view in phpMyAdmin 3.2.4 but I cannot figure how to do that. Any suggestions?
Thanks!
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How to select unique records by SQL
... column names, you get distinct records:
SELECT DISTINCT column 1, column 2, ...
FROM table_name;
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How to handle exceptions in a list comprehensions?
...ruth: 1) literally, i.e. lexically IN the comprehension itself, you can't; 2) practically, you delegate the job to a function or check for error prone values when that's feasible. Your repeated claim that this is not an answer is thus unfounded.
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How can I quantify difference between two images?
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what is the unsigned datatype?
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answered Jul 23 '09 at 13:46
Martin v. LöwisMartin v. Löwis
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Multiple Type Constraints in Swift
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You can use a where clause which lets you specify as many requirements as you want (all of whi...
How to push both value and key into PHP array
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