How to remove the svg content in D3.js

Learn, how to remove the svg content before redrawing a new chart in d3.js.

Removing the SVG content

To remove the svg content (aka child elements), you can use the selectAll() and remove() methods provided by the d3.

Example:

const svg = d3.select(".chart")
        .append("svg")
        .attr("width", 534)
        .attr("height", 400);

svg.selectAll('*').remove();

Removing the svg element

If you want to remove the svg element instead of its content, you can use the remove() method.

svg.remove();

If you want to remove all svg elements in d3, you can do it like this

d3.selectAll('svg').remove();