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How to know if user is logged in with passport.js?

...sport.js info and samples for two days, but I'm not sure after that I did all the process of authenticating. 6 Answers ...
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SVG fill color transparency / alpha?

...or example: <rect ... fill="#044B94" fill-opacity="0.4"/> Additionally you have the following: stroke-opacity attribute for the stroke opacity for the entire object share | improve this ...
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Does the JVM prevent tail call optimizations?

... This post: Recursion or Iteration? might help. In short, tail call optimization is hard to do in the JVM because of the security model and the need to always have a stack trace available. These requirements could in theory be supported, but it would probably require a new bytecode (see J...
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Creating a JSON response using Django and Python

...JSON content. import json from django.http import HttpResponse response_data = {} response_data['result'] = 'error' response_data['message'] = 'Some error message' Pre-Django 1.7 you'd return it like this: return HttpResponse(json.dumps(response_data), content_type="application/json") For D...
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rails - Devise - Handling - devise_error_messages

...hould help you get started. :) Another update The resource object is actually the model that is being used by devise (go figure). resource.class #=> User resource.errors.class #=> ActiveModel::Error It also appears to be defined in a higher scope (probably coming from the contro...
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Is it possible to override JavaScript's toString() function to provide meaningful output for debuggi

...bject.prototype.toString.call behavior. developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… – TLadd Apr 16 '19 at 20:11 add a comment  |  ...
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PHP memory profiling

...r example, to see how much memory my data is using, and/or which function calls are allocating the most memory. 4 Answers ...
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WPF - How to force a Command to re-evaluate 'CanExecute' via its CommandBindings

... RoutedCommand I've defined. The associated CommandBinding provides a callback for the evaluation of CanExecute which controls the enabled state of each MenuItem . ...
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How to create a density plot in matplotlib?

...with R. This is because gaussian_kde tries to infer the bandwidth automatically. You can play with the bandwidth in a way by changing the function covariance_factor of the gaussian_kde class. First, here is what you get without changing that function: However, if I use the following code: import...
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PostgreSQL Crosstab Query

... Install the additional module tablefunc once per database, which provides the function crosstab(). Since Postgres 9.1 you can use CREATE EXTENSION for that: CREATE EXTENSION IF NOT EXISTS tablefunc; Improved test case CREATE ...