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presentViewController:animated:YES view will not appear until user taps again
... subtle bug, because if you have the slightest feedback animation, timers, etc. in your code this issue won't surface because the runloop will be kept alive by these sources. I've found the issue by using a UITableViewCell which had its selectionStyle set to UITableViewCellSelectionStyleNone, so tha...
How to re-create database for Entity Framework?
...in the application for me) and select open. Once open put all the database/etc. files in a backup folder or if you have the guts just delete them. Run your application and it should recreate everything from scratch.
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What does = +_ mean in JavaScript
... a number.
_ is only a variable name (not an operator), it could be a, foo etc.
Example:
+"1"
cast "1" to pure number 1.
var _ = "1";
var r = +_;
r is now 1, not "1".
Moreover, according to the MDN page on Arithmetic Operators:
The unary plus operator precedes its operand and evaluates ...
Is there a way to crack the password on an Excel VBA Project?
...he source modules but receive another error when trying to open forms/code/etc. To remedy this, go back to the VBA Project Properties and set the password to a new value. Save and re-open the Excel document and you should be good to go!
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How to open files relative to home directory
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The shell (bash, zsh, etc) is responsible for wildcard expansion, so in your first example there's no shell, hence no expansion. Using the tilde to point to $HOME is a mere convention; indeed, if you look at the documentation for File.expand_path,...
Block Comments in a Shell Script
... in the commented-out material. I'd be leary of experimenting with spaces etc, but the word might well work with them too.
– Jonathan Leffler
Jun 28 '12 at 18:34
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Javascript - Append HTML to container element without innerHTML
... think it would have been better if you created a demo (jsfiddle, codepen, etc) and then added that to Alnafie's answer by using the edit feature or submitting a comment. Creating an answer only to demonstrate another user's answer is not how SO works, regardless of how useful the information you pr...
What is the difference between char s[] and char *s?
... function that would try to modify it (e.g., strtok(), strcat(), strcpy(), etc.).
The line
char s1[] = "hello world";
defines s1 as a 12-element array of char (length is taken from the string literal) with auto storage duration and copies the contents of the literal to the array. As you can s...
Struct like objects in Java
...mes it's better to return a copy of field's object or transform it somehow etc. You can mock such methods in your tests. If you create a new class you might not see all possible actions. It's like defensive programming - someday getters and setters may be helpful, and it doesn't cost a lot to create...
Why is there no xrange function in Python3?
...86_64 but slower on x86, or faster in some use cases but slower in others, etc.). Nobody was likely worried about a 30% difference either way in how long it takes to iterate a range while doing nothing else.
– abarnert
Feb 22 '13 at 0:20
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