JavaScript变量分配不起作用

Question

I have run in to a stupid problem... I declared a new variable called leadingZero. I save the modified .js file and run the project with a breakpoint on the leadingZero assignment and in watcher window it says its undefined after passing this line, but all the other declarations here are working fine and I can see the assigned values. needless to say the getObject call does not work now.

var leadingZero = 0; //new variable
var chkActive; 
var chkSubscribe; 
var hdnItem = getObject('hdnItemCounter');
var ItemCount = parseInt(hdnItem.value) + 1;

for (intCounter = 2; intCounter <= ItemCount; intCounter++) {
  chkActive = getObject('dgrProductList_ctl0' + leadingZero + intCounter + '_chkActive');
}

Answer 1

Check this http://jsfiddle.net/DHDsE/

Not getting the undefined problem tho, but having to add toString() to leadingZero for it to render in the console.log, so maybe that's your issue too.

Answer 2

You did set the breakpoint on the line below, didn't you?

Because if you set it on the line var leadingZero = 0; it halts before the line is evaluated, which explains the undefined value in the watcher.

Also, as gillesc pointed out, your leadingZero must be a string, otherwise you're adding up intCounter and leadingZero , rather than concatenating them.

Answer 3

The problem seemed to be changes to the js were not loaded in ie cache. even after closing ie, rebuilding the project and running again, I still need to hit ctrl+f5 on the page to load the new javascript