This code can parse a SVG Sprite image to it's original svgs.

Sprite To SVG.js

// Install hast-util-to-html
// Install svg-parser

import {toHtml} from "hast-util-to-html";
import {parse} from "svg-parser";
import * as fs from 'fs';


fs.readFile('input/path/sprite.svg', 'utf8', function (err, contents) {
    const parsed = parse(contents);
    const symbols = parsed.children[0].children;
    symbols.forEach(symbol => {
        const name = symbol.properties.id;
        symbol.tagName = "svg";
        let newIcon = toHtml(symbol);
        fs.writeFile(`output/path/${name}.svg`, newIcon, () => {
            console.log(name);
        });
    });
});