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image.onload event and browser cache

... As you're generating the image dynamically, set the onload property before the src. var img = new Image(); img.onload = function () { alert("image is loaded"); } img.src = "img.jpg"; Fiddle - tested on latest Firefox and Chrome releases. You can also use t...
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How unique is UUID?

...om numbers. However, it seems to me that given enough time, it would eventually repeat it self, just by pure chance. Is there a better system or a pattern of some type to alleviate this issue? ...
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How do I show/hide a UIBarButtonItem?

... Save your button in a strong outlet (let's call it myButton) and do this to add/remove it: // Get the reference to the current toolbar buttons NSMutableArray *toolbarButtons = [self.toolbarItems mutableCopy]; // This is how you remove the button from the toolbar and ...
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Colorized Ruby output to the terminal [closed]

...orite gem! :-) Check it out: https://github.com/fazibear/colorize Installation: gem install colorize Usage: require 'colorize' puts "I am now red".red puts "I am now blue".blue puts "Testing".yellow share ...
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Sending message through WhatsApp

...en/android/26000030/?category=5245251 WhatsApp's Click to Chat feature allows you to begin a chat with someone without having their phone number saved in your phone's address book. As long as you know this person’s phone number, you can create a link that will allow you to start a chat w...
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Create timestamp variable in bash script

...ittle easier. I want to create the variable at the beginning of the script and have it print out the current time whenever I issue echo $timestamp . It proving to be more difficult then I thought. Here are some things I've tried: ...
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Why can't variables be declared in a switch statement?

...lity and consistency in the code. In the old days, you might have automatically got an "extra" stack frame, but now that should not be the case for any decent optimizing compiler. – Tall Jeff Sep 18 '08 at 14:37 ...
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How can I deploy/push only a subdirectory of my git repo to Heroku?

... Yep, but subtree is still (as of 1.8.0.2) not included via the git installer. Luckily installing from source is quick and straightforward, this page worked for me on mac. – dribnet Dec 29 '12 at 22:19 ...
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How do I reverse an int array in Java?

...ster, but it confuses many programmers and any good compiler will automatically do that. – Justin Apr 7 '14 at 18:54 2 ...
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Does the 'mutable' keyword have any purpose other than allowing the variable to be modified by a con

...able of a class with the mutable keyword. As far as I can see it simply allows you to modify a variable in a const method: ...