zachvictor

function compactify(ugly) {
    // Step 1: JSON stringify with indentation (4 spaces)
    const first_pass = JSON.stringify(JSON.parse(ugly), null, 4)
    
    // Step 2: Put comma-sep. numbers on same line
    const comma_num_newline_ptn = /,\n +((\d\.)?\d+)/g
    const num_same_line = first_pass.replace(comma_num_newline_ptn, ', $1')
    
    // Step 3: Put flat arrays on same line
    const flat_array_ptn = /\[\n\s+(([\d.]+, )+[\d.]+)\n\s+\]/g