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Purpose of Unions in C and C++

... it for non-overlapping periods of time. These people never meet, and generally don't know anything about each other. By properly managing the time-sharing of the rooms (i.e. by making sure different people don't get assigned to one room at the same time), a relatively small hotel can provide accomm...
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Check image width and height before upload with Javascript

... The file is just a file, you need to create an image like so: var _URL = window.URL || window.webkitURL; $("#file").change(function (e) { var file, img; if ((file = this.files[0])) { img = new Image(); var objectUrl = _URL.createObjectURL(file); img.onload = ...
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Using Chrome, how to find to which events are bound to an element

...nel. Use a Mouse -> click breakpoint and then "step into next function call" while keeping an eye on the call stack to see what userland function handles the event. Ideally, you'd replace the minified version of jQuery with an unminified one so that you don't have to step in all the time, and use...
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How do I format a date in Jinja2?

...and print) the strftime() method in your template, for example {{ car.date_of_manufacture.strftime('%Y-%m-%d') }} Another, sightly better approach would be to define your own filter, e.g.: from flask import Flask import babel app = Flask(__name__) @app.template_filter() def format_datetime(val...
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onCreateOptionsMenu inside Fragments

...nsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.menu_sample, menu); super.onCreateOptionsMenu(menu,inflater); } And in onCreate add this line to make the options appear in your Toolbar setHasOptionsMenu(true); ...
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Create a dictionary on a list with grouping

...vert it to a dictionary, as follows: Dim qry = (From acs In ActualSales _ Group By acs.ProductID Into Group _ Select ProductID, Months = Group.ToDictionary(Function(c) c.Period) _ ).ToDictionary(Function(c) c.ProductID) The resulting query can be used as fo...
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What is the difference between SQL Server 2012 Express versions?

...anagement Studio Express) This package contains everything needed to install and configure SQL Server as a database server. Choose either LocalDB or Express depending on your needs above. That's the SQLEXPRWT_x64_ENU.exe download.... (WT = with tools) Express with Advanced Services (conta...
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In Eclipse, what can cause Package Explorer “red-x” error-icon when all Java sources compile without

I'm using Eclipse for Java development. All my sources compile fine and the resulting application compiles fine. However, I keep getting an "red-x" error notification in the Package Explorer. ...
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How to make a class conform to a protocol in Swift?

...aSource' Is expected. You will get the error until your class implements all required methods of the protocol. So get coding :) share | improve this answer | follow ...
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How to Convert all strings in List to lower case using LINQ?

... Easiest approach: myList = myList.ConvertAll(d => d.ToLower()); Not too much different than your example code. ForEach loops the original list whereas ConvertAll creates a new one which you need to reassign. ...