SOURCE

function _PointToLine(
    point,
    lines
) {
    const [x, y] = point;
    const [x1, y1] = lines[0];
    const [x2, y2] = lines[1];
    const length = Math.sqrt(Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2));
    const areas = Math.abs((x1 - x) * (y2 - y) - (y1 - y) * (x2 - x));
    return areas / length;
}

function _isPointInLine(
    coordinates,
    point,
    projection,
    lineWidth
) {
    if (coordinates.length <= 1) return false;

    const lineArr = coordinates.map(projection);
    for (let i = 1; i < lineArr.length; i++) {
        if (
            this._PointToLine(point, [lineArr[i], lineArr[i - 1]]) <
            lineWidth / 2
        ) {
            return true;
        }
    }

    return false;
}

console.time("")