If Statements Skipping or Evaluating Strangely, JavaScript and jquery
- by tlm2021
So in jQuery, I have a global variable "currentSubNav" that stores a current visible element. The following code executes on "mouseenter".
I need it to get store element's ID, check to see if there was one. If there wasn't, set the new visible element to the default.
$('#mainMenu a').mouseenter(function() {
var newName = $(this).attr("id");
if(newName == ''){
var newName = "default";
}
Then it checks to see if the new element matches the current one. If so, it returns. If not, it performs the animations to bring in the new one.
if(newName == currentSubNav){
return;
}else{
$("div[name=" + currentSubNav + "]").animate({"left": "+=600px", "opacity": "toggle"}, "slow");
$("div[name=" + newName + "]").css({"margin-top": "0"});
$("div[name=" + newName + "]").fadeIn(2000);
$("div[name=" + currentSubNav + "]").animate({"left": "-=600px"}, 0);
currentSubNav = newName;
return;
}
});
I'm using Chrome at the moment, and according to the dev tools that isn't what happens.
Problem #1
"$(this).attr("id");" isn't returning undefined as the documentation claims. It seems to be returning "". BUT, when I have the if statement as I do above, it skips over the statement entirely. I set a breakpoint, but it never pauses execuation, so the statement is never evaluated.
Problem #2
After the animations occur, instead of using the return at the end of the statements it goes back and uses the return for the "newName == currentSubNav" if statement. I guess that not a big deal, but it's not the intended behavior.
I'm fairly new to JavaScript, and it appears I'm missing something about how JavaScript works. But I can't find what anywhere. Any help?
Blockquote
