I need to move the data out of HTML code and load it on demand.
I need to do something like this:
function processData( data )
{
if ( data.length===0 )
{
data = get data from server using Ajax or even...
data = [['2011-06-01',1],['2011-06-02',3]] ; // just for educational purposes
}
else go do stuff with data ;
}
storeData = [] ;
processData( storeData ) ; // first time storeData doesn't contain any data
processData( storeData ) ; // now storeData contains data
I can't figure out how to stuff the data from within the function. Is there a way of accomplishing this?
function processData()
{
if ( storeData.length===0 )
{
storeData = get data from server using Ajax
}
else go do stuff with storeData ;
}
storeData = [] ;
processData( storeData ) ; // first time storeData doesn't contain any data
processData( storeData ) ; // now storeData contains data
storeData is a global anyway. When you specify processData( data )
you are doing what's called a pass by value. Basically your making a copy of the data. Once the program exits the function, the copy is lost to garbage collection. An alternative would be to pass by reference, but because it's a global anyway (declared outside the function) there's little point.
read here
It might help to know more concrete details since it seems like you might be going about your task in an unusual way. There may be a better way of accomplishing what you want.
Have you just tried something as simple as:
function processData( data )
{
...
return data;
}
storeData = [] ;
storeData = processData( storeData ) ; // first time storeData doesn't contain any data
storeData = processData( storeData ) ; // now storeData contains data
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.