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Is there a standardized method to swap two variables in Python?

...e assigned to the first element of the tuple (which is the object that was formely b before the swap because it had name b) and the second identifier b is assigned to the second element of the tuple (which is the object that was formerly a before the swap because its identifiers was a) This mechan...
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How to update two tables in one statement in SQL Server 2005?

...eference exactly one base table in the FROM clause of the view. For more information about updatable views, see CREATE VIEW (Transact-SQL). CREATE VIEW (Transact-SQL) You can modify the data of an underlying base table through a view, as long as the following conditions are true: Any modification...
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What can , and be used for?

...</f:viewParam> </f:metadata> <h:message for="id" /> Performing business action on GET parameters You can use the <f:viewAction> for this. <f:metadata> <f:viewParam id="id" name="id" value="#{bean.id}" required="true"> <f:validateLongRange minimum=...
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Injecting $scope into an angular service function()

...g data is a string error returned from your REST API }) } }]); The form: <div class="form-message">{{message}}</div> <div ng-controller="StudentSaveController"> <form novalidate class="simple-form"> Name: <input type="text" ng-model="user.name" /><br ...
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byte[] to hex string [duplicate]

... @Grungondola: That is most likely the reason for the bad performance. If you use += in a loop it works well for very short loops, but it scales very badly. Each additional iteration roughly doubles the execution time, so at about 20 iterations you have a performance issue. Every addit...
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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

... the standard output (maybe to a log file): set_error_handler('myHandlerForMinorErrors', E_NOTICE | E_STRICT) Disable E_NOTICE from reporting. A quick way to exclude just E_NOTICE is: error_reporting( error_reporting() & ~E_NOTICE ) Suppress the error with the @ operator. Note: It's stro...
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AddBusinessDays and GetBusinessDays

... 5) * 2); } } } Example: using System; using System.Windows.Forms; using Extensions.DateTime; namespace AddBusinessDaysTest { public partial class Form1 : Form { public Form1() { InitializeComponent(); label1.Text = DateTime.Now.AddBusi...
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What are Aggregates and PODs and how/why are they special?

...g PODs. If you find any errors (even minor, including grammar, stylistics, formatting, syntax, etc.) please leave a comment, I'll edit. This answer applies to C++03. For other C++ standards see: C++11 changes C++14 changes C++17 changes What are aggregates and why they are special Formal def...
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Using AES encryption in C#

... rijAlg.IV = IV; // Create a decryptor to perform the stream transform. ICryptoTransform encryptor = rijAlg.CreateEncryptor(rijAlg.Key, rijAlg.IV); // Create the streams used for encryption. using (MemoryStream msEncrypt...
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Maximum Year in Expiry Date of Credit Card

...ct the age input field to that max just in case the oldest person used the form once they turned 116... :[ – Alastair Jan 25 '13 at 14:23 ...