如何在条件或等效条件下执行等待操作。 [英] How do I perform an await operation as while conditions or equivalence for it.?
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问题描述
大家好。
我一直在使用SQLiteWinRT库,我无法实现(据我所知)在javascript的bucles中工作的异步操作的等效性。
这是一个例子:
Hi everybody.
I've been working with SQLiteWinRT library and there's no way I can't implement (the far I know) the equivalence of async operation working in bucles for javascript.
Here is an example:
await db.OpenAsync(SQLiteWinRT.SqliteOpenMode.OpenRead);
var stmt = await db.PrepareStatementAsync(
"SELECT name FROM sqlite_master WHERE type = 'table'"
);
//this is the part
while ( await stmt.StepAsync() )
{
string table = stmt.GetTextAt(0);
this.ViewModel.DatabaseTables.Add(table);
}
我希望能做正确的问题。
I hope to be doing the right question.
推荐答案
我发现了我自己的解决方案。我希望这可以帮助某人
I've found the solution by myself . I hope this can help someone
stmt.stepAsync().then(function(r) {
if (r) {
var obj = {}, i = -1;
while (++i < stmt.columnCount) {
obj[stmt.getColumnName(i)] = stmt.getTextAt(i);
}
arr.push(obj);
stmt.stepAsync().then(arguments.callee);
} else {
console.log(arr);
}
})
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