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CodeIgniter: Create new helper?

...ined('BASEPATH')) exit('No direct script access allowed'); if ( ! function_exists('test_method')) { function test_method($var = '') { return $var; } } Save this to application/helpers/ . We shall call it "new_helper.php" The first line exists to make sure the file cannot b...
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Delete a key from a MongoDB document using Mongoose

...rs. So you can do the action in question by this: User.collection.update({_id: user._id}, {$unset: {field: 1 }}); Since version 2.0 you can do: User.update({_id: user._id}, {$unset: {field: 1 }}, callback); And since version 2.4, if you have an instance of a model already you can do: doc.fiel...
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Autoreload of modules in IPython [duplicate]

... For IPython version 3.1, 4.x, and 5.x %load_ext autoreload %autoreload 2 Then your module will be auto-reloaded by default. This is the doc: File: ...my/python/path/lib/python2.7/site-packages/IPython/extensions/autoreload.py Docstring: ``autoreload`` is an ...
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Min/Max of dates in an array?

... _.min and _.max work on arrays of dates; use those if you're using Lodash or Underscore, and consider using Lodash (which provides many utility functions like these) if you're not already. For example, _.min([ new Date(...
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Calling filter returns [duplicate]

... @Mr_and_Mrs_D try putting an iterator object itObj in [] and you will get [itObj], while putting in list() you will get values from object like [1, 4, 7], assuming itObj has these values. – user2846569 ...
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Pros and Cons of Interface constants [closed]

...mple of a good enough and a bad use: Bad: interface User { const TYPE_ADMINISTRATOR = 1; const TYPE_USER = 2; const TYPE_GUEST = 3; } Good Enough: interface HTTPRequest_1_1 { const TYPE_CONNECT = 'connect'; const TYPE_DELETE = 'delete'; const TYPE_GET ...
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Android - Package Name convention

...va, more about which can be read here:* http://en.wikipedia.org/wiki/Java_package#Package_naming_conventions Source: http://www.quora.com/Why-do-a-majority-of-Android-package-names-begin-with-com share | ...
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Draw line in UIView

...Path(context); before CGContextMoveToPoint(...);? – i_am_jorf Nov 9 '11 at 18:38 37 Using a view ...
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Convert pem key to ssh-rsa format

...pub -i -mPKCS8 From the ssh-keygen docs (From man ssh-keygen): -m key_format Specify a key format for the -i (import) or -e (export) conversion options. The supported key formats are: “RFC4716” (RFC 4716/SSH2 public or private key), “PKCS8” (PEM PKCS8 public key) or “PEM” (PEM pub...
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this.setState isn't merging states as I would expect

...construct a new state and then call setState() on that: var newSelected = _.extend({}, this.state.selected); newSelected.name = 'Barfoo'; this.setState({ selected: newSelected }); I've used function _.extend() function (from underscore.js library) here to prevent modification to the existing sele...