Question

Ext.each(boundsExtend, function(value)
{
    if(value != record.ID) break;
});

So how do I break or continue Ext.each loop?

Answer 1

From the docs:

If the supplied function returns
false, iteration stops and this method
returns the current index.

So as in the OP’s example (assuming record is in scope and non-null):

Ext.each(boundsExtend, function(value) {
  if (value != record.ID) {
    return false;
  }
  // other logic here if ids do match
});

Note that returning false exits the loop completely, so in this case the first non-matching record will bypass any additional checking.

However I’m guessing that what you’re really trying to do is loop until you find the matching record, do some logic, then short-circuit the loop. If that’s the case, the logic would actually be:

Ext.each(boundsExtend, function(value) {
  if (value === record.ID) {
    // do your match logic here...
    // if we're done, exit the loop:
    return false;
  }
  // no match, so keep looping (i.e. "continue")
});

Any other value that is not explicitly false (e.g. null by default) will keep the loop going.