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What does “use strict” do in JavaScript, and what is the reasoning behind it?
Recently, I ran some of my JavaScript code through Crockford's JSLint , and it gave the following error:
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How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
I have a innoDB table which records online users. It gets updated on every page refresh by a user to keep track of which pages they are on and their last access date to the site. I then have a cron that runs every 15 minutes to DELETE old records.
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Please explain the exec() function and its family
What is the exec() function and its family? Why is this function used and how does its work?
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What is the best way to stop people hacking the PHP-based highscore table of a Flash game
I'm talking about an action game with no upper score limit and no way to verify the score on the server by replaying moves etc.
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Blocks and yields in Ruby
I am trying to understand blocks and yield and how they work in Ruby.
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What exactly does git's “rebase --preserve-merges” do (and why?)
Git's documentation for the rebase command is quite brief:
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How do you get the list of targets in a makefile?
I've used rake a bit (a Ruby make program), and it has an option to get a list of all the available targets, eg
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Sorting an array of objects by property values
I've got the following objects using AJAX and stored them in an array:
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Why do I get “a label can only be part of a statement and a declaration is not a statement” if I hav
I have the following simplified code:
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What are the applications of binary trees?
I am wondering what the particular applications of binary trees are. Could you give some real examples?
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