On a recent project, a text list page to jump to a tag attachment, in a label with the onclick event, through ajax data from the judge to have attachment, during executing judgment will display a page loading $(" # loading "). The show (); If there is attachment will jump to the accessories list page (that is, perform herf), if there is no attachment will prompt "this is no attachment", also won't perform jumps (herf),
Now if the ajax for synchronous $(" # loading ".) the show (); Are executed after the ajax, and set it to sync word in the success of the if after the judgment can't return false make href does not perform,
How can I get to do both make $(" # loading ".) the show (); Perform before ajax, and achieve success in the if judgment after returning false make href does not perform,
A great god, please give advice or comments,

CodePudding user response:

This is not necessary to asynchronous, synchronous write directly in your success and the results you want is ok, don't write a tag href, you inside the success with the location. The href control jump,

 
$(" # loading "). The show (); 
$. Ajax ({
Success: the function (res) {
If (with attachment) {
Location. A href="https://bbs.csdn.net/topics/" address; 
$(" # loading "). Hide (); 
} else {
$(" # loading "). Hide (); 
JAlert (" no attachment "); 
} 
} 
}); 

CodePudding user response:

This method is useful to implement, but using this method in the project of change of momentum is too big, can still through the href jump

CodePudding user response:

 
$(" # loading "). The show (); 
//define a variable, said if there is attachment 
Var hasFile=false; 
$. Ajax ({
//to a synchronous request 
Async: false, 
Success: the function (res) {
If (with attachment) {
HasFile=true; 
} 
} 
}); 
Return hasFile; 

CodePudding user response:

So $(" # loading ".) the show (); Can be carried after ajax

CodePudding user response:

reference 5 building small 丿 handsome reply:

$(" # loading "). So the show (); Can be carried after ajax

You can try to add the callback function to the show in
Such as $(" # loading "). The show (' fast ', function () {
$. Ajax ({
Success: the function (res) {
.
}
});
});

CodePudding user response:

Have tried, but if after the execution will jump page

CodePudding user response:

The

reference 7 building small 丿 handsome reply:

have so tried, but if after the execution will jump page

Into a synchronous mode

CodePudding user response:

The same regardless of synchronous or asynchronous will jump

CodePudding user response:

$(" # loading "). The show (); First, ajax can only use asynchronous,
You can directly make the onclick event returns false, banned a label jump,
And flow in the success of the if have the attachment on the location. The href=https://bbs.csdn.net/topics/a tags. Herf to jump,

CodePudding user response:

references 9 building small 丿 handsome reply:

either synchronous or asynchronous alike will jump

You want to be in a link onClick join return
The function goUrl () {
return false;
}
Jump & lt;/a> Invalid
Should be changed to
Jump & lt;/a>