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Make a phone call programmatically
... I think Mellon's approach is better as it prompts the user first, and then returns to your app after the call. Just make sure to use canOpenURL: and fallback to the tel: prompt since telprompt is not official and could be removed in a future iOS version.
– joel.d
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“Unknown class in Interface Builder file” error at runtime
...ode tries to load such a class, it can't find the code associated with it, and prints the warning.
By default, Objective-C targets will have -all_load -ObjC flags set by default, which will keep all of the symbols. But I had started with a C++ target, and didn't have that. Nevertheless, I found a...
Re-sign IPA (iPhone)
...rovisioning profile. Results in a new IPA signed with a enterprise account and a mobile provisioning profile for in house deployment (the mobile provisioning profile gets embedded to the IPA).
Solution:
Unzip the IPA
unzip Application.ipa
Remove old CodeSignature
rm -r "Payload/Application.app...
Get last n lines of a file, similar to tail
I'm writing a log file viewer for a web application and for that I want to paginate through the lines of the log file. The items in the file are line based with the newest item on the bottom.
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Can I stretch text using CSS?
...h the text vertically so it's kind of deformed. This would be in one div, and then the normal text beside it would be in another div. How can I do this?
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JavaScript: How to pass object by value?
... properties added to o will be available from obj if they're not shadowed, and all objects that have o in the prototype chain will see the same updates to o.
Also, if obj has a property that references another object, like an Array, you'll need to be sure to shadow that object before adding members...
How can I make text appear on next line instead of overflowing? [duplicate]
...u pick where to stuff those characters? That depends on the actual string and what it means, I guess.
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keycode 13 is for which key
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Check an ASCII table.
It stands for CR, or Carriage Return, AKA the Return key.
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Angular.js vs Knockout.js vs Backbone.js [closed]
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It depends on the nature of your application. And, since you did not describe it in great detail, it is an impossible question to answer. I find Backbone to be the easiest, but I work in Angular all day. Performance is more up to the coder than the framework, in my opini...
How to save an HTML5 Canvas as an image on a server?
...u
// need is to return the url to the file, you just saved
// and than put the image in your browser.
});
Save base64 on your server as an image (here is how to do this in PHP, the same ideas is in every language. Server side in PHP can be found here):
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