Heavy-handed conversion of JavaScript objects/arrays/functions/strings, etc. to text

convertToText.js

/*!
 * Convert an object to a string, for whatever reason.
 * This can be useful for heavy-handed comparison
 * (as in compareByText() function below),
 * or printing out JavaScript objects or functions.
 *
 * Original source:
 * http://stackoverflow.com/questions/5612787/converting-an-object-to-a-string
 * ('extra' comma issue has been resolved in the code below)
 *
 * https://gist.github.com/Error601/d9623b836458b5b6fe86
 */

function convertToText( obj, spaces ){

    if ( obj === window ) {
        // don't be cray-cray
        return false
    }

    var string = '',
        part = [],
        prop,
        len = 0,
        i = -1;

    // is string - skip all other tests
    if ( typeof obj == 'string' ) {
        string += obj;
    }
    // is object
    else if ( Object.prototype.toString.call(obj) === '[object Object]' ) {
        for ( prop in obj ) {
            // should we filter the properties?
            //if ( obj.hasOwnProperty(prop) ){
                part.push(prop + ': ' + convertToText(obj[prop], spaces));
            //}
        }
        string += ' { ' + part.join(', ') + ' } ';
    }
    // is array
    else if ( Array.isArray(obj) ) {
        len = obj.length;
        while ( ++i < len ) {
            part.push(convertToText(obj[i], spaces));
        }
        string += ' [ ' + part.join(', ') + ' ]';
    }
    // is function
    else if ( typeof obj == 'function' ) {
        string += obj.toString();
    }
    //all other values can be done with JSON.stringify
    else {
        string += JSON.stringify(obj);
    }

    // strip spaces by default and also if (spaces !== true)
    if ( typeof spaces == 'undefined' || spaces.toString().toLowerCase() !== 'true' ) {
        return string.replace(/\s/g, '');
    }
    // only keep spaces if (spaces === true)
    else {
        return string;
    }
}

// fairly heavy-handed approach for comparison
function compareByText( obj1, obj2 ){
    return convertToText(obj1) === convertToText(obj2);
}