var ret = []
,xresult = document.evaluate(exp, rootEl, null,
XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null)
,result = xresult.iterateNext();
while (result) {
ret[ret.length]= result;
result = xresult.iterateNext();
}
can anyone explain me what is the ret = [],..,... syntax? Initializing array?
You're right. This code:
var ret = []
,xresult = document.evaluate(exp, rootEl, null,
XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null)
,result = xresult.iterateNext();
Could be rewritten as:
var ret = [];
var xresult = document.evaluate(exp, rootEl, null,
XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
var result = xresult.iterateNext();
var foo = []; initializes foo as an empty array.
ret, xresult and result... please elaborate more on this if you can. unless there is no connection and just short hand writing - one line initializing.
var a = 1, b = 2, c = 3; is one way to write it, but I could do it like this too: var a = 1; var b = 2; var c = 3; ... using commas is merely coding style. Based on the code you posted, there's no link between ret, xresult and result.while loop your posted uses those three variables to populate the ret array. But the var line is just initialization.