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How to scroll to the bottom of a UITableView on the iPhone before the view appears

... From Jacob's answer, this is the code: - (void) viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; if (self.messagesTableView.contentSize.height > self.messagesTableView.frame.size.height) { ...
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How can I reset a react component including all transitively reachable state?

...by render; when it changes, that component will be thrown away and created from scratch. render: function() { // ... return <div key={uniqueId}> {children} </div>; } There's no shortcut to reset the individual component's local state. ...
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Using an SSH keyfile with Fabric

...t (with a matching gist). Basically, the usage goes something like this: from fabric.api import * env.hosts = ['host.name.com'] env.user = 'user' env.key_filename = '/path/to/keyfile.pem' def local_uname(): local('uname -a') def remote_uname(): run('uname -a') The important part is se...
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What is the difference between “px”, “dip”, “dp” and “sp”?

... From the Android Developer Documentation: px Pixels - corresponds to actual pixels on the screen. in Inches - based on the physical size of the screen. 1 Inch = 2.54 centimeters mm Millimeters - based on ...
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How to get the type of T from a member of a generic class or method?

...Give a try with BindingList<T>, our BindingListView<T> inherit from BindingList<T> and both I have try both of your option and it doesn't work. I might do something wrong... but I think this solution work for the type List<T> but not other type of list. –...
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What are the differences between local branch, local tracking branch, remote branch and remote track

...t fetch or git pull. git pull origin myNewBranch # Pulls new commits from branch "myNewBranch" # on remote "origin" into remote tracking # branch on your machine "origin/myNewBranch". # Here "or...
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How do I measure time elapsed in Java? [duplicate]

...o a different core partway through, you will end up with a start timestamp from core 1 and a end timestamp from core 2 but they might not be the same time (you can even get negative values) - some examples: stackoverflow.com/questions/510462/… is a good e – jasonk ...
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How can I get my webapp's base URL in ASP.NET MVC?

...et that URL in a reliable way that doesn't involve getting the current URL from the request and chopping it up in some fragile way that breaks if I re-route my action. ...
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Java HashMap performance optimization / alternative

... making up a simple example.) If your strings have widely varying lengths, from 1 to 10,000, and are fairly evenly distributed across that range, that this could be a very good hash function. But if your strings are all 1 or 2 characters, this would be a very bad hash function. Edit: I should add: ...
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How to “EXPIRE” the “HSET” child key in redis?

...e useful in all scenarios and the performance characteristics might differ from the expected ones. Still worth mentioning: When having a hash, the structure basically looks like: hash_top_key - child_key_1 -> some_value - child_key_2 -> some_value ... - child_key_n -> some_value ...