Circular-references aware inspect() function.

inspect_even_circular.js

// util.inspect() alternative returning always valid JSON even having circular refernces.
// Only for debugging and inspection purposes.
// Intended to be used in conjunction with underscore. Ex: "underscore print --color"
// Also useful with my lovely javascript inspection vim mappings:
//        https://github.com/bitifet/dotfiles/blob/master/.vim/after/syntax/javascript/SyntaxInclude.vim
var inspect = (function(){
    var utilInspect = require("util").inspect;
    return function inspect (obj) {
        var result;
        var str = "var Circular = \"(->CIRCULAR<-)\";\n";
        str += "result = JSON.stringify(";
        str += utilInspect (obj, {showHidden: false, depth: null})
        str += ");"
        eval(str);
        return result;
    };
})();