svelte-ux/utils/map.js

- Increment version in `package.json` and commit as `Version bump to x.y.z` - `npm run publish`

/**
 * Get the value at path of Map.  Useful for nested maps (d3-array group, etc).
 * Similar to lodash get() but for Map instead of Object
 */
export function get(map, path) {
    let key = null;
    let value = map;
    const currentPath = [...path]; // Copy since .shift() mutates original array
    while ((key = currentPath.shift())) {
        if (value instanceof Map && value.has(key)) {
            value = value.get(key);
        }
        else {
            return undefined;
        }
    }
    return value;
}