改进的模板替换

 1 function tempExt(h, data) {
 2                 return h.replace(/\{(.*?)\}/g, function (str, m) {
 3                     var arrM = m.split(‘.‘),
 4                             t = data[arrM.shift()];
 5                     for (var i = 0, _len = arrM.length; i < _len; i++) {
 6                         t = t[arrM[i]];
 7                     }
 8                     return t === undefined || t === null ? ‘‘ : t;
 9                 });
10             }

var testData = {
                d1: ‘1‘,
                d2: ‘2‘,
                d3: {
                    id: {
                        u: 1024
                    }
                }
            }
            var htmlTemp = ‘<p><span>{d1}</span><span>{d2}</span><span>{d3.id.u}</span></p>‘;

tempExt(htmlTemp, testData);