Colorize an object about log

[adamschwartz]

The issue is that attempting to concatenate your object is causing it to be .toString()d before log even has a chance to work on it. In Chrome if you log an object, you already get colored syntax highlighting though.

The best you could achieve if you wanted to log your object pretty printed and syntax highlighted (with different colors than Chrome devtools already provides) would be to use JSON.stringify, run your own syntax highlighting on the string, and then log it yourself. For example, you could modify this SO answer to use the custom syntax you mentioned above rather than the <span> output:

function syntaxHighlight(json) {
    if (typeof json != 'string') {
         json = JSON.stringify(json, undefined, 2);
    }
    json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
    return json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function (match) {
        var cls = 'number';
        if (/^"/.test(match)) {
            if (/:$/.test(match)) {
                cls = 'key';
            } else {
                cls = 'string';
            }
        } else if (/true|false/.test(match)) {
            cls = 'boolean';
        } else if (/null/.test(match)) {
            cls = 'null';
        }
        return '<span class="' + cls + '">' + match + '</span>';
    });
}

Source: http://stackoverflow.com/a/7220510/131898