这里有很多代码,但问题与底部的 for 循环有关。
var dbo = openDatabase('xxx','1.0','myDatabase', 1048576);
var DropTableDeferred = new $.Deferred();
var CreateTableDeferred = new $.Deferred();
var InsertDeferred = new $.Deferred();
var SelectDeferred = new $.Deferred();
dbo.transaction(function(myTrans) {
myTrans.executeSql(
'drop table myTable;'
,[]
,DropTableDeferred.resolve()
);
});
DropTableDeferred.done(function() {
dbo.transaction(function(myTrans) {
myTrans.executeSql(
'CREATE TABLE IF NOT EXISTS myTable'
+ '(xxxID Integer NOT NULL PRIMARY KEY'
+ ',xxxName Varchar(128)'
+ ');'
,[]
,CreateTableDeferred.resolve()
);
});
});
CreateTableDeferred.done(function() {
dbo.transaction(function(myTrans) {
myTrans.executeSql("INSERT INTO myTable(xxxID,xxxName) VALUES(1,'A')");
myTrans.executeSql("INSERT INTO myTable(xxxID,xxxName) VALUES(2,'B')");
myTrans.executeSql(
"INSERT INTO myTable(xxxID,xxxName) VALUES(3,'C')",
[],
InsertDeferred.resolve()
);
});
});
InsertDeferred.done(function() {
dbo.transaction(function(myTrans) {
myTrans.executeSql(
'SELECT * FROM myTable',
[],
function(tx, result) {
SelectDeferred.resolve(result);
}
);
});
});
SelectDeferred.done(function(result) {
var X = $('#result-template').html();
var template = Handlebars.compile(X);
var data = [];
for(var i=0;i < result.rows.length; i++) {
data.push(result.rows.item(i));
}
$('ul').append(template(data));
});
Q: 调用template(data)是否需要建立一个数据数组,或者我可以直接传递result变量吗?
通过“结果变量”,我的意思是:result.rows,或 result.rows.item,或其他一些组合。