[英]Return multiple rows as an array from a WebSQL databse using javaScript
我想从javaScript
函数内的WebSQL
数据库中的特定表中以数组形式返回多行。 下面是我的代码。
function getCustomerAccountDetails(){
var dataset;
db.transaction(function(tx) {
tx.executeSql('SELECT * FROM contacts', [], function(tx, results) {
dataset = results.rows;
});
});
return dataset
}
有什么建议么?
我只是使用javaScript函数中的从WebSQL查询返回COUNT来做到这一点
根据链接,使用jQuery
就像这样并且可以正常工作! 但我想有一个javaScript
答案。
function getCustomerAccountDetails(){
var defer = $.Deferred();
db.transaction(function(tx) {
tx.executeSql('SELECT * FROM contacts', [], function(tx, results) {
defer.resolve(results.rows);
});
});
return defer.promise();
}
function exampleThatUsesUserArray(data) {
//do something that uses count here
return data;
}
var dataArray = getCustomerAccountDetails();
$.when(dataArray).done(function(data) {
//now use count, could be you call another function that needs to use count,
//getCustomerAccountDetails();
alert(exampleThatUsesUserArray(data.length) + " Row Count");
for(var i = 0; i < data.length; i++){
alert((i+1) + "-" + data.item(i)['id'] + "-" + data.item(i)['firstname'] + "-"
+ data.item(i)['lastname'] + "-" + data.item(i)['phonenumber']);
}
//or assign it to another variable, or trigger an event that someone else in you app is listening for
});
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