I expect this has been asked before but I have searched and cannot find the correct answer.
If a function is called, and while doing that function another is used to check something, how can the initial function be halted from the second function?
a(1);
function a(v){
check(v);
alert "value correct";
// continue
}
function check(v){
if ( v!=1 ){
alert "stop here number wrong";
return;
}
}
You have two options: pass up a return value or just return when you need to.
a(1);
function a(v){
var stopped = false;
if (v==1){
stopped = stop();
}
if (stopped) {
return;
}
alert("did not stop");
}
function stop(){
alert("I want it to stop here");
return true;
}ReturnEven simpler: just return when you call stop():
a(1);
function a(v){
if (v==1){
stop();
return;
}
alert("did not stop");
}
function stop(){
alert("I want it to stop here");
}P.S. You can't do alert "foo"; -- you need parentheses, like alert("foo");.
return from one function at a time. You have to set some sort of return value or other state to check what happened in the stop() function. Anyway, glad I could help.Do something like this:
a(1);
function a(v){
if (v == 1){ // don't do anything }
else { /** DO SOMETHING **/ }
}
Have the function return when you want it to stop running
See comments in code below for changes:
a(1);
function a(v) {
if (v == 1) {
// You may not even need this function
// Just place a return 0; instead
stop();
// Have the parent function stop executing
// As well as the child function
return 0;
}
// Make sure to use parenthesis ()
// When using "alert" function
alert("did not stop");
}
function stop() {
alert("I want it to stop here");
return 0;
}