js用for对数组的操作,大神进答:var data = [{"xvalue":"美国","yvalue":"方法","value":"42"},{"xvalue":"美国","yvalue":"计算机","value":"92"},{"xvalue":"山东","yvalue":"一种","value":"100"},{"xvalue":"山东","yvalue"
js中怎么去掉数组的空值,不知道是第几个,只要是空值就删除答:不知道这个效果是否达到要求: var array = [1,2,,,4,6,,,55]; alert(array) for(var i = 0 ;i<array.length;i++) { if(array[i] == "" || typeof(array[i]) == "undefined") { array.splice(i,1); i= i-1; } } alert(array) ...
JS IF 数组的问题HTML答:function huitian() { var tmp = { "单管塔": [DGT(L), FSS(SZ), DGT(S), DGT(D), DGT(Z), DGT(C)], "三管塔": [3GT, LXWG(WM), ZGJ(WM), BG(WM), BG(WMZL)], "角钢塔": [JGT] }; var DATA_52 = document.getElementsByName("DATA_52"...