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Create an empty object in JavaScript with {} or new Object()?
...t be a good practice to get into.
One other thing: you might have subtle errors if you forget to use the new operator. So, using literals will help you avoid that problem.
Ultimately, it will depend on the situation as well as preference.
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Does MySQL index foreign key columns automatically?
... as being a "redundant index". I tried to drop it but I got the following error: "ERROR 1553 (HY000): Cannot drop index 'index_name': needed in a foreign key constraint". So, it's not possible to drop that index and keep the foreign key.
– Ciprian Stoica
Oct ...
What represents a double in sql server?
... With some quick and dodgy mental arithmetic... the rounding/approximation errors would be the about the length of this fill stop -> "."
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iFrame src change event detection?
...);
https://jquery.com/upgrade-guide/3.0/#breaking-change-load-unload-and-error-removed
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Arrow operator (->) usage in C
...ointer has no members! And compiler knows this and will therefore issue an error e.g.:
error: ‘ptr’ is a pointer; did you mean to use ‘->’?
printf("%d\n", *ptr.km);
Instead you use this (*ptr).kg and you force compiler to 1st dereference the pointer and enable acess to the chunk of d...
When would you use the different git merge strategies?
...the default 'recursive' for a two-head merge that had fatal git-write-tree errors. 'Resolve' strategy merged cleanly. It may have had to do with moving a lot of files around in the branch being merged.
– thaddeusmt
May 17 '12 at 12:51
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How to replace strings containing slashes with sed?
... contains the actual delimiter used by sed - then sed terminates on syntax error. Consider the following example:
This works:
$ VALUE=12345
$ echo "MyVar=%DEF_VALUE%" | sed -e s/%DEF_VALUE%/${VALUE}/g
MyVar=12345
This breaks:
$ VALUE=12345/6
$ echo "MyVar=%DEF_VALUE%" | sed -e s/%DEF_VALUE%/${V...
Finish an activity from another activity
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It shows this error "Syntax error on tokens, AnnotationName expected instead" on "registerReceiver(broadcast_reciever, new IntentFilter("finish_activity"));". What's wrong?
– Behzad
Nov 13 '12 at 8:2...
Impossible to Install PG gem on my mac with Mavericks
...l the pg gem in order to work again with my rails projects. But I get this error:
26 Answers
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Xcode 6 Bug: Unknown class in Interface Builder file
... Actually in my case i had to remove customModuleProvider, then the error went away.
– Maciej Swic
Mar 11 '15 at 13:15
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