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What is the equivalent of “none” in django templates?
I want to see if a field/variable is none within a Django template. What is the correct syntax for that?
7 Answers
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How to access class constants in Twig?
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{% if var == constant('Namespace\\Entity::TYPE_PERSON') %}
{# or #}
{% if var is constant('Namespace\\Entity::TYPE_PERSON') %}
See documentation for the constant function and the constant test.
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HTML5 Canvas vs. SVG vs. div
What is the best approach for creating elements on the fly and being able to move them around? For example, let's say I want to create a rectangle, circle and polygon and then select those objects and move them around.
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How to change port number for apache in WAMP
I am new to WAMP server and installed it on my system but after installing it when I check it by going to localhost url like this http://localhost/ in the browser it is not working. I am getting a 404 error and blank page .
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What is the difference between static_cast and C style casting?
Is there any reason to prefer static_cast<> over C style casting? Are they equivalent? Is their any sort of speed difference?
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How to format numbers as currency string?
I would like to format a price in JavaScript. I'd like a function which takes a float as an argument and returns a string formatted like this:
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Retrieving Property name from lambda expression
Is there a better way to get the Property name when passed in via a lambda expression?
Here is what i currently have.
21 An...
Find and Replace text in the entire table using a MySQL query
Usually I use manual find to replace text in a MySQL database using phpmyadmin. I'm tired of it now, how can I run a query to find and replace a text with new text in the entire table in phpmyadmin?
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How to SSH to a VirtualBox guest externally through a host? [closed]
I have a Ubuntu VM running on my Windows 7 machine. How do I set it up so that I can access the webserver externally through SSH?
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Capture Video of Android's Screen
Forget screenshots, is it posible to capture a video of the running application in android?
Rooted or non-rooted, I don't care, I want atleast 15fps.
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