PHP offers print_r() and var_dump() methods that can print the values of arrays and objects recursively with values indented so it’s easy to debug code. There’s no print_r for JavaScript but OpenJS has an equivalent function for dumping variables in a structured format.
function dump(arr, level) { var dumped_text = ""; if (!level) level = 0; // The padding given at the beginning of the line. var level_padding = ""; for (var j = 0; j < level + 1; j++) level_padding += " "; if (typeof(arr) == 'object') { // Array/Hashes/Objects for (var item in arr) { var value = arr[item]; if (typeof(value) == 'object') { // If it is an array, dumped_text += level_padding + "'" + item + "' ...\n"; dumped_text += dump(value, level + 1); } else { dumped_text += level_padding + "'" + item + "' => \"" + value + "\"\n"; } } } else { // Stings/Chars/Numbers etc. dumped_text = "===>" + arr + "<===(" + typeof(arr) + ")"; } return dumped_text; }