web

The browser example

The same chart model that renders SVG on a server, drawing on a <canvas> through backend/canvas, with hover, wheel zoom, drag pan and a double click to reset.

GOOS=js GOARCH=wasm go build -o examples/web/chart.wasm ./examples/web
cp "$(go env GOROOT)/lib/wasm/wasm_exec.js" examples/web/

Then serve this directory with any static file server and open it. The .wasm and wasm_exec.js files are build output and are not committed.

What to look at

• main_js.go is the whole application: build a *figure.Plot exactly as a server would, open it with p.Live(canvas.Element(el)), register handlers with p.On, and wire the DOM to it with live.Bind(el).
• Nothing in the chart is browser-specific. The plot could be marshalled to JSON here and rendered to PDF on a server, or the other way round — see package spec.