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How can I find unused images and CSS styles in a website? [closed]

Is there a method (other than trial and error) I can use to find unused image files? How about CSS declarations for ID's and Classes that don't even exist in the site? ...
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jQuery validation: change default error message

... rangelength: jQuery.validator.format("Please enter a value between {0} and {1} characters long."), range: jQuery.validator.format("Please enter a value between {0} and {1}."), max: jQuery.validator.format("Please enter a value less than or equal to {0}."), min: jQuery.validator.forma...
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What are these attributes: `aria-labelledby` and `aria-hidden`

...sible Rich Internet Applications (ARIA) defines ways to make Web content and Web applications (especially those developed with Ajax and JavaScript) more accessible to people with disabilities. To be precise for your question, here is what your attributes are called as ARIA attribute states and...
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Correct use of flush() in JPA/Hibernate

...formation about the flush() method, but I'm not quite clear when to use it and how to use it correctly. From what I read, my understanding is that the contents of the persistence context will be synchronized with the database, i. e. issuing outstanding statements or refreshing entity data. ...
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How can I know when an EditText loses focus?

... Implement onFocusChange of setOnFocusChangeListener and there's a boolean parameter for hasFocus. When this is false, you've lost focus to another control. EditText txtEdit = (EditText) findViewById(R.id.edittxt); txtEdit.setOnFocusChangeListener(new OnFocusChangeListener(...
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Restricting input to textbox: allowing only numbers and decimal point

How can I restrict input to a text-box so that it accepts only numbers and the decimal point? 32 Answers ...
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Ignore mouse interaction on overlay image

I have a menu bar with hover effects, and now I want to place a transparent image with a circle and a "handdrawn" text over one of the menu items. If I use absolute positioning to place the overlay image above the menu item, the user will not be able to click the button and the hover effect will not...
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java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState

...nloading data from internet. In the onPreExecute() method I add a Fragment and in the onPostExecute() method I remove it again. When the orientation is changed in between, I get the above mentioned exception. Please take a look at the details: ...
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How to check if an NSDictionary or NSMutableDictionary contains a key?

... And what if the key does exist, but it's corresponding value is nil? – Fyodor Soikin May 6 '10 at 21:30 2...
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Spring MVC type conversion : PropertyEditor or Converter?

I am looking for the easiest and simplest way to bind and convert data in Spring MVC. If possible, without doing any xml configuration. ...