js_list
public javascript v1 · immutablevar mainLists = new Array(); // make main Lists array (empty)mainLists["cheese"]= new Array(); // make an array of cheesesalert("mainLists count is now: "+mainLists.length); // does not grow to 1! stays at 0.var mainLists = new Array(); // make main Lists array (empty)mainLists["cheese"]= new Array(); // make an array of cheesesalert("mainLists count is now: "+mainLists.length); // does not grow to 1! stays at 0.