if (!Array.prototype.forEach) {
Array.prototype.forEach = function (callback, thisArg) {
var T, k;
if (this == null) {
throw new TypeError(" this is null or not defined");
}
var O = Object(this);
var len = O.length >>> 0; // Hack to convert O.length to a UInt32
if ({}.toString.call(callback) != "[object Function]") {
throw new TypeError(callback + " is not a function");
}
if (thisArg) {
T = thisArg;
}
k = 0;
while (k < len) {
var kValue;
if (k in O) {
kValue = O[k];
callback.call(T, kValue, k, O);
}
k++;
}
};
}
//筛选连续的数字
function arrange(source) {
var t;
var ta;
var r = []; source.forEach(function (v) {
//console.log(t, v); // 跟踪调试用
if (t === v) {
ta.push(t);
t++;
return;
} ta = [v];
t = v + 1;
r.push(ta);
}); return r;
}
//测试
var arr=[1,5,6,8,11,12];
arrange(arr); 返回:[[1],[5],[6],[8],[11,12]]
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