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SVG Linear Gradient with D3

This example demonstrates how to use gradients in SVG, defining the stop colors completely via CSS. The advantage of this approach is that we can use gradients in shapes without having to hardcode the stop-color attributes when defining the gradients in the SVG element.

References

• SVG linearGradient (MDN)
• Draw a D3 Circle with Gradient Colours

atma

# Add to nginx.conf http section
map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

hrldcpr

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!