all files / src/core/ util.js

37.1% Statements 23/62
23.81% Branches 10/42
63.64% Functions 7/11
37.1% Lines 23/62
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204                           627×                                                                     716× 546× 1035× 1035×       716×                     114× 114× 113× 48×       114×                                                                                                                                               110×                   110×                   110×       110×                   110×     110×     110×               110×            
var guid = 0;
 
var ArrayProto = Array.prototype;
var nativeForEach = ArrayProto.forEach;
 
/**
 * Util functions
 * @namespace clay.core.util
 */
var util = {
 
    /**
     * Generate GUID
     * @return {number}
     * @memberOf clay.core.util
     */
    genGUID: function () {
        return ++guid;
    },
    /**
     * Relative path to absolute path
     * @param  {string} path
     * @param  {string} basePath
     * @return {string}
     * @memberOf clay.core.util
     */
    relative2absolute: function (path, basePath) {
        if (!basePath || path.match(/^\//)) {
            return path;
        }
        var pathParts = path.split('/');
        var basePathParts = basePath.split('/');
 
        var item = pathParts[0];
        while(item === '.' || item === '..') {
            if (item === '..') {
                basePathParts.pop();
            }
            pathParts.shift();
            item = pathParts[0];
        }
        return basePathParts.join('/') + '/' + pathParts.join('/');
    },
 
    /**
     * Extend target with source
     * @param  {Object} target
     * @param  {Object} source
     * @return {Object}
     * @memberOf clay.core.util
     */
    extend: function (target, source) {
        if (source) {
            for (var name in source) {
                Eif (source.hasOwnProperty(name)) {
                    target[name] = source[name];
                }
            }
        }
        return target;
    },
 
    /**
     * Extend properties to target if not exist.
     * @param  {Object} target
     * @param  {Object} source
     * @return {Object}
     * @memberOf clay.core.util
     */
    defaults: function (target, source) {
        Eif (source) {
            for (var propName in source) {
                if (target[propName] === undefined) {
                    target[propName] = source[propName];
                }
            }
        }
        return target;
    },
    /**
     * Extend properties with a given property list to avoid for..in.. iteration.
     * @param  {Object} target
     * @param  {Object} source
     * @param  {Array.<string>} propList
     * @return {Object}
     * @memberOf clay.core.util
     */
    extendWithPropList: function (target, source, propList) {
        if (source) {
            for (var i = 0; i < propList.length; i++) {
                var propName = propList[i];
                target[propName] = source[propName];
            }
        }
        return target;
    },
    /**
     * Extend properties to target if not exist. With a given property list avoid for..in.. iteration.
     * @param  {Object} target
     * @param  {Object} source
     * @param  {Array.<string>} propList
     * @return {Object}
     * @memberOf clay.core.util
     */
    defaultsWithPropList: function (target, source, propList) {
        if (source) {
            for (var i = 0; i < propList.length; i++) {
                var propName = propList[i];
                if (target[propName] == null) {
                    target[propName] = source[propName];
                }
            }
        }
        return target;
    },
    /**
     * @param  {Object|Array} obj
     * @param  {Function} iterator
     * @param  {Object} [context]
     * @memberOf clay.core.util
     */
    each: function (obj, iterator, context) {
        if (!(obj && iterator)) {
            return;
        }
        if (obj.forEach && obj.forEach === nativeForEach) {
            obj.forEach(iterator, context);
        }
        else if (obj.length === + obj.length) {
            for (var i = 0, len = obj.length; i < len; i++) {
                iterator.call(context, obj[i], i, obj);
            }
        }
        else {
            for (var key in obj) {
                if (obj.hasOwnProperty(key)) {
                    iterator.call(context, obj[key], key, obj);
                }
            }
        }
    },
 
    /**
     * Is object
     * @param  {}  obj
     * @return {boolean}
     * @memberOf clay.core.util
     */
    isObject: function (obj) {
        return obj === Object(obj);
    },
 
    /**
     * Is array ?
     * @param  {}  obj
     * @return {boolean}
     * @memberOf clay.core.util
     */
    isArray: function (obj) {
        return Array.isArray(obj);
    },
 
    /**
     * Is array like, which have a length property
     * @param  {}  obj
     * @return {boolean}
     * @memberOf clay.core.util
     */
    isArrayLike: function (obj) {
        Iif (!obj) {
            return false;
        }
        else {
            return obj.length === + obj.length;
        }
    },
 
    /**
     * @param  {} obj
     * @return {}
     * @memberOf clay.core.util
     */
    clone: function (obj) {
        Iif (!util.isObject(obj)) {
            return obj;
        }
        else Iif (util.isArray(obj)) {
            return obj.slice();
        }
        else Iif (util.isArrayLike(obj)) { // is typed array
            var ret = new obj.constructor(obj.length);
            for (var i = 0; i < obj.length; i++) {
                ret[i] = obj[i];
            }
            return ret;
        }
        else {
            return util.extend({}, obj);
        }
    }
};
 
export default util;