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Fix warning “Capturing [an object] strongly in this block is likely to lead to a retain cycle” in AR
In ARC enabled code, how to fix a warning about a potential retain cycle, when using a block-based API?
7 Answers
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ALTER DATABASE failed because a lock could not be placed on database
I need to restart a database because some processes are not working. My plan is to take it offline and back online again.
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Reasons for using the set.seed function
Many times I have seen the set.seed function in R, before starting the program. I know it's basically used for the random number generation. Is there any specific need to set this?
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How to enable MySQL Query Log?
...rom clients and the time that query statement has submitted?
Can I do that in phpmyadmin or NaviCat?
How do I analyse the log?
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java.lang.IllegalStateException: The specified child already has a parent
I am using fragments, when I instantiate a fragment the first time it it. but the second time I got this exception. I couldn't find the line where I got the error?
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How do I select text nodes with jQuery?
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jQuery doesn't have a convenient function for this. You need to combine contents(), which will give just child nodes but includes text nodes, with find(), which gives all descendant elements but no text nodes. Here's what I've come up with:
var getTextNodesIn = function(el) {
return $(el...
How to prevent rm from reporting that a file was not found?
I am using rm within a BASH script to delete many files. Sometimes the files are not present, so it reports many errors. I do not need this message. I have searched the man page for a command to make rm quiet, but the only option I found is -f , which from the description, "ignore nonexistent f...
How do I make an HTML text box show a hint when empty?
I want the search box on my web page to display the word "Search" in gray italics. When the box receives focus, it should look just like an empty text box. If there is already text in it, it should display the text normally (black, non-italics). This will help me avoid clutter by removing the label....
Remove HTML Tags in Javascript with Regex
I am trying to remove all the html tags out of a string in Javascript.
Heres what I have... I can't figure out why its not working....any know what I am doing wrong?
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How do I pull from a Git repository through an HTTP proxy?
Note: while the use-case described is about using submodules within a project, the same applies to a normal git clone of a repository over HTTP.
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