shuyar-util/lib/object.js

Some useful function or tools in development.

;(function () {
    
    /**
     * Created by Galen Sheen
     * @Desc object常用工具
     */
    
    // Reference to the global object
    var root = this;
    
    var object = {};
    
    object.equals = function (obj1, obj2) {
        
        if (!obj1 || !obj2) {
            return false;
        }
        
        var p;
        
        // Check is obj1[p] equals to obj2[p] 
        for (p in obj1) {
            if (obj1.hasOwnProperty(p)) {
                
                if (obj1[p]) {
                    
                     if (!obj2[p]) {
                         return false;
                     }
                     
                     switch (typeof obj1[p]) {
                         case 'object':
                            if (!this.equals(obj1[p], obj2[p])) {
                                return false;
                            }
                            break;
                         case 'function':
                            if (obj1[p].toString() !== obj2[p].toString()) {
                                return false;
                            }
                            break;
                        default:
                            if (obj1[p] !== obj2[p]) {
                                return false;
                            }
                     }
                     
                } else {
                    if (obj2[p]) {
                        return false;
                    }
                }
            }
        }
        
        // Check is obj2[p] equals to obj1[p]
        for (p in obj2) {
            if (obj2.hasOwnProperty(p)) {
                
                if (obj2[p]) {
                    
                    if (!obj1[p]) {
                        return false;
                    }
                    
                    switch (typeof obj2[p]) {
                        case 'object':
                            if (!this.equals(obj2[p], obj1[p])) {
                                return false;
                            }
                            break;
                        case 'function':
                            if (obj2[p].toString() !== obj1[p].toString()) {
                                return false;
                            }
                            break;
                        default:
                            if (obj2[p] !== obj1[p]) {
                                return false;
                            }
                    }
                    
                } else {
                    if (obj1[p]) {
                        return false;
                    }
                }
            }
        }
        
        // Else obj1 equals to obj2
        return true;
    };
    
    object.merge = function (obj1, obj2) {
        
        if (obj2) {
            var key, value;
            
            for (key in obj2) {
                if (obj2.hasOwnProperty(key)) {
                    value = obj2[key];
                    
                    try {
                        if (value.constructor === Object) {
                            obj1[key] = this.merge(obj1[key], value);
                        } else {
                            obj1[key] = value;
                        }
                    } catch (e) {
                        obj1[key] = value;
                    }
                }
            }
        }
        
        return obj1;
    };
    
    // Check the env is node or browser
    if (typeof module !== 'undefined' && module.exports) {
        // Node env
        module.exports = object;
    } else if (typeof window !== 'undefined') {
        // Browser env
        root.object = object;
    } else {
        return object;
    }
}).call(this);