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No identities are available for signing Xcode 5
...when try to validate my app in Xcode 5. I tried all: Recreate certificates and provisioning profiles, all methods which have been described on this site and another resources; I'm confused, because when I try to distribute my app as Ad-hoc, it successfully create and install on test device an IPA fi...
Code coverage for Jest
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When using Jest 21.2.1, I can see code coverage at the command line and create a coverage directory by passing --coverage to the Jest script. Below are some examples:
I tend to install Jest locally, in which case the command might look like this:
npx jest --coverage
I assume (tho...
Eclipse error: “The import XXX cannot be resolved”
...rying to work with Hibernate in Eclipse.
I'm creating a new simple project and I've downloaded a collegue project too, via CVS.
Both don't work, while on my collegue's Eclipse do.
The problem is that, for each import of an Hibernate class, Eclipse says:
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Create a GUID in Java
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Have a look at the UUID class bundled with Java 5 and later.
For example:
If you want a random UUID you can use the randomUUID method.
If you want a UUID initialized to a specific value you can use the UUID constructor or the fromString method.
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Fastest way to count exact number of rows in a very large table?
...ECT COUNT(*) FROM TABLE_NAME will be slow when the table has lots of rows and lots of columns.
25 Answers
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Are GUID collisions possible?
...with the same GUID. I know that microsoft uses an algorithm to generate a random GUID that has an extremely low chance of causing collisons, but is a collision still possible?
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What are deferred objects?
jQuery 1.5 adds "Deferred Objects". What are they, and what exactly do they do?
4 Answers
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Why check both isset() and !empty()
Is there a difference between isset and !empty . If I do this double boolean check, is it correct this way or redundant? and is there a shorter way to do the same thing?
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How do I compare two strings in Perl?
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See perldoc perlop. Use lt, gt, eq, ne, and cmp as appropriate for string comparisons:
Binary eq returns true if the left argument is stringwise equal to the right argument.
Binary ne returns true if the left argument is stringwise not equal to the right argument....
Sublime text 2 - find and replace globally ( all files and in all directories )
Is there any way to find and replace text string automatically in all folder's files ?
2 Answers
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