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jquery change class name

... You can set the class (regardless of what it was) by using .attr(), like this: $("#td_id").attr('class', 'newClass'); If you want to add a class, use .addclass() instead, like this: $("#td_id").addClass('newClass'); Or a short way to swap classes using .toggleClass(): ...
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How to use z-index in svg elements?

... fiddle : http://jsfiddle.net/hu2pk/3/ Update In SVG, z-index is defined by the order the element appears in the document. You can have a look to this page too if you want : https://stackoverflow.com/a/482147/1932751 share...
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jQuery: select all elements of a given class, except for a particular Id

...jquery_ref_selectors.asp for more information on jQuery selectors. Ignore by Exact ID: $(".thisClass").not('[id="thisId"]').doAction(); Ignore ID's that contains the word "Id" $(".thisClass").not('[id*="Id"]').doAction(); Ignore ID's that start with "my" $(".thisClass").not('[id^="my"]').do...
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Another Repeated column in mapping for entity error

... same goes for productId/product). You shouldn't reference other entities by their ID, but by a direct reference to the entity. Remove the customerId field, it's useless. And do the same for productId. If you want the customer ID of a sale, you just need to do this: sale.getCustomer().getId() ...
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Is there a way to access the “previous row” value in a SELECT statement?

... SQL has no built in notion of order, so you need to order by some column for this to be meaningful. Something like this: select t1.value - t2.value from table t1, table t2 where t1.primaryKey = t2.primaryKey - 1 If you know how to order things but not how to get the previous val...
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How do PHP sessions work? (not “how are they used?”)

...to the user when his session is created. it is stored in a cookie (called, by default, PHPSESSID) that cookie is sent by the browser to the server with each request the server (PHP) uses that cookie, containing the session_id, to know which file corresponds to that user. The data in the sessions f...
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Android: How to bind spinner to custom object list?

...le_spinner_item, users); mySpinner = (Spinner) findViewById(R.id.miSpinner); mySpinner.setAdapter(adapter); // Set the custom adapter to the spinner // You can create an anonymous listener to handle the event when is selected an spinner item mySpinner.setO...
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Delete a single record from Entity Framework?

... not necessary to query the object first, you can attach it to the context by its id. Like this: var employer = new Employ { Id = 1 }; ctx.Employ.Attach(employer); ctx.Employ.Remove(employer); ctx.SaveChanges(); Alternatively, you can set the attached entry's state to deleted : var employer = ne...
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What's the difference between Spring Data's MongoTemplate and MongoRepository?

...can do complex queries using spring-data and mongodb. I have been starting by using the MongoRepository but struggled with complex queries to find examples or to actually understand the Syntax. ...
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How to get the unique ID of an object which overrides hashCode()?

... So if an object is created at memory address 0x2000, then is moved by the VM, then an other object is created at 0x2000, will they have the same System.identityHashCode()? – Limited Atonement Jun 7 '13 at 22:54 ...