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If table exists drop table then create it, if it does not exist just create it

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
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What are Flask Blueprints, exactly?

...inted out in a comment by @Devasish, this article provides a good answer: http://exploreflask.com/en/latest/blueprints.html Quoting from the article: An example of this would be Facebook. If Facebook used Flask, it might have blueprints for the static pages (i.e. signed-out home, register, ...
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Javascript - How to detect if document has loaded (IE 7/Firefox 3)

... No need for a library. jQuery used this script for a while, btw. http://dean.edwards.name/weblog/2006/06/again/ // Dean Edwards/Matthias Miller/John Resig function init() { // quit if this function has already been called if (arguments.callee.done) return; // flag this function so...
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How can I group data with an Angular filter?

...pm: by running $ npm install angular-filter from your terminal via cdnjs http://www.cdnjs.com/libraries/angular-filter (2) Include angular-filter.js (or angular-filter.min.js) in your index.html, after including Angular itself. (3) Add 'angular.filter' to your main module's list of de...
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Why should text files end with a newline?

...ine> characters plus a terminating <newline> character. Source: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206 An incomplete line as: A sequence of one or more non- <newline> characters at the end of the file. Source: https://pubs.opengrou...
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How does Django's Meta class work?

...d controlled by a metaclass called ModelBase, you can see that code here: https://github.com/django/django/blob/master/django/db/models/base.py#L61 And one of the things that ModelBase does is to create the _meta attribute on every Django model which contains validation machinery, field details, s...
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Redirecting to URL in Flask

... app = Flask(__name__) @app.route('/') def hello(): return redirect("http://www.example.com", code=302) if __name__ == '__main__': # Bind to PORT if defined, otherwise default to 5000. port = int(os.environ.get('PORT', 5000)) app.run(host='0.0.0.0', port=port) See the documentat...
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What does __FILE__ mean in Ruby?

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Is it possible to clone html element objects in JavaScript / JQuery?

... var foo2 = jQuery('#foo2'); foo1.html(foo2.children().clone()); Proof: http://jsfiddle.net/de9kc/ share | improve this answer | follow | ...
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Implementing slicing in __getitem__

...ake one parameter, which can either be a number, or a slice object. See: http://docs.python.org/library/functions.html#slice http://docs.python.org/reference/datamodel.html#object.__getitem__ share | ...