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Check/Uncheck checkbox with JavaScript (jQuery or vanilla)?

... Javascript: // Check document.getElementById("checkbox").checked = true; // Uncheck document.getElementById("checkbox").checked = false; jQuery (1.6+): // Check $("#checkbox").prop("checked", true); // Uncheck $("#checkbox").prop("checked", false); jQuery (1.5...
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Difference between Key, Primary Key, Unique Key and Index in MySQL

... A primary key is a column, or a combination of columns, that can uniquely identify a row. It is a special case of unique key. A table can have at most one primary key, but more than one unique key. When you specify a unique key on a column, no two distinct rows in a table can have the same value. ...
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Backbone.View “el” confusion

...r want to see it do anything. An example: I have a view that creates individual items window.ItemView = Backbone.View.extend({ tagName: "li", //this defaults to div if you don't declare it. template: _.template("<p><%= someModelKey %></p>"), events: { //this...
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Finding sum of elements in Swift array

...lection of elements down to a single value by recursively applying the provided closure". We give it 0 as the initial value, and then, essentially, the closure { $0 + $1 }. Of course, we can simplify that to a single plus sign, because that's how Swift rolls. ...
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How to align 3 divs (left/center/right) inside another div?

I want to have 3 divs aligned inside a container div, something like this: 18 Answers ...
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How can I properly handle 404 in ASP.NET MVC?

...SP.net MVC 1.0 as well Here's how I handle http exceptions: protected void Application_Error(object sender, EventArgs e) { Exception exception = Server.GetLastError(); // Log the exception. ILogger logger = Container.Resolve<ILogger>(); logger.Error(exception); Response.Cle...
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Check if option is selected with jQuery, if not select a default

...y what you want to accomplish, this bit of code worked for me. <select id="mySelect" multiple="multiple"> <option value="1">First</option> <option value="2">Second</option> <option value="3">Third</option> <option value="4">Fourth</option&g...
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Refresh Fragment at reload

In an android application I'm loading data from a Db into a TableView inside a Fragment . But when I reload the Fragment it displays the previous data. Can I repopulate the Fragment with current data instead of previous data? ...
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Generate Java classes from .XSD files…?

... that I want the element to be arranged in XML output. @XmlAttribute(name="id", ...) indicates that id is an attribute to root element. @XmlElement(....) indicates that I want price and name to be element within Item. My Item.java is ready. I can then go ahead and create JAXB script for marshaling...
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Refreshing web page by WebDriver when waiting for specific condition

...d driver.get("https://accounts.google.com/SignUp"); driver.findElement(By.id("firstname-placeholder")).sendKeys(Keys.F5); Using navigate.refresh() method driver.get("https://accounts.google.com/SignUp"); driver.navigate().refresh(); Using navigate.to() method driver.get("https://accounts.goog...