新聞財經娛樂♬資訊 News Economy

At the beginning  of my javascript code, i used insertRow and insertcells to form a table with 350*12 cells,
the speed is really slow in IE7, so from suggestion of other EE thread, I change my code to the method
suggest for string.push and string.join method in last test example at
http://www.quirksmode.org/dom/innerhtml.html. It improve a lot, and the display is came out really faster in
IE same as in FIrefox, Safari, Chrome.

My question is
1- What is clonenode method meaning in the first two example in the http link above. Why
people is using clonenode if string.push method is good or better
2- WHat is string.join('') meaning , what is meaning.
3- In Jquery, they aslo use clone() function, is it same method in first  two example at the link
4- Last, I really hard to understand what is innerHTML vs DOM method , i though inner HTML is in DOM method
What is different ?
5- How to make the fastest a table nowsday, what method is the best ?

Please advise

jQuery.extend({
      clone: function( elem, dataAndEvents, deepDataAndEvents ) {
            var clone = elem.cloneNode(true),
                        srcElements,
                        destElements,
                        i;


it use cloneNode

http://www.quirksmode.org/dom/innerhtml.html

1- What is clonenode method meaning in the first two example in the http link above. Why
people is using clonenode if string.push method is good or better

DOM manipulation is safer way to do, but very slow. Others solutions are shortcuts

2- WHat is string.join('') meaning , what is meaning.

It join tables elements together in 1 string using empty string between

3- In Jquery, they aslo use clone() function, is it same method in first  two example at the link


4- Last, I really hard to understand what is innerHTML vs DOM method , i though inner HTML is in DOM method
What is different ?

innerHTML modify the DOM once, insert row modify dom each line


5- How to make the fastest a table nowsday, what method is the best ?

innerHTML is faster i think there are benchmark on the net depends data size, rows numbers etc..