I’m doing some small experiments based on this blog entry.
I am doing this research in Google Chrome’s debugger and here comes the hard part.
I get the fact that I can’t delete local variables (since they are not object attributes). I get that I can ‘read out’ all of the parameters passed to a function from the array called ‘arguments’. I even get it that I can’t delete and array’s element, only achieve to have
array have a value of undefined.
Can somebody explain to me what
undefined x 1 means on the embedded image?
And when I overwrite the function
foo to return the
arguments, then I get the usual and ‘normal’ undefined.
This is only an experiment, but seems interresting, does anybody know what
undefined x 1 refers to?
Using arrays : using-arrays