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How to set a selected option of a dropdown list control using angular JS

...item.selectedVariant. This means that changing item.selectedVariant in JavaScript, or changing the value in the control, updates the other. If item.selectedVariant has a value of 0, that item should get selected. If variants is an array of objects, item.selectedVariant must be set to one of those o...
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Truncating all tables in a Postgres database

... FrustratedWithFormsDesigner is correct, PL/pgSQL can do this. Here's the script: CREATE OR REPLACE FUNCTION truncate_tables(username IN VARCHAR) RETURNS void AS $$ DECLARE statements CURSOR FOR SELECT tablename FROM pg_tables WHERE tableowner = username AND schemaname = 'publi...
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How does a public key verify a signature?

...t only YOU have: your private key. A digital signature in its simplest description is a hash (SHA1, MD5, etc.) of the data (file, message, etc.) that is subsequently encrypted with the signer's private key. Since that is something only the signer has (or should have) that is where the trust comes...
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Portable way to get file size (in bytes) in shell?

...did that on a full hard disk. It was slow enough that I could re-write the script before the first one finished, came here to remember how I did it lol. – Camilo Martin Jul 27 '12 at 13:43 ...
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How to change the button text of ?

...d component library called Twitter Bootstrap Sample usage: Include: <script type="text/javascript" src="js/bootstrap-filestyle.min.js"> </script> Via JavaScript: $(":file").filestyle(); Via data attributes: <input type="file" class="filestyle" data-classButton="btn btn-primar...
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Cross-Origin Request Headers(CORS) with PHP headers

I have a simple PHP script that I am attempting a cross-domain CORS request: 11 Answers ...
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How do I get the value of text input field using JavaScript?

I am working on a search with JavaScript. I would use a form, but it messes up something else on my page. I have this input text field: ...
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Is there an eval() function in Java? [duplicate]

... You can use the ScriptEngine class and evaluate it as a Javascript string. ScriptEngineManager manager = new ScriptEngineManager(); ScriptEngine engine = manager.getEngineByName("js"); Object result = engine.eval("4*5"); There may be a be...
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Django CSRF check failing with an Ajax POST request

...Real solution Ok, I managed to trace the problem down. It lies in the Javascript (as I suggested below) code. What you need is this: $.ajaxSetup({ beforeSend: function(xhr, settings) { function getCookie(name) { var cookieValue = null; if (document.cookie ...
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What is the documents directory (NSDocumentDirectory)?

... // location of user's Pictures directory (~/Pictures) NSPrinterDescriptionDirectory NS_ENUM_AVAILABLE(10_6, 4_0) = 20, // location of system's PPDs directory (Library/Printers/PPDs) NSSharedPublicDirectory NS_ENUM_AVAILABLE(10_6, 4_0) = 21, // location of user's Public sh...