I have the following code.
Array.prototype.range = function(start, count) {
this.push(start);
if(this.length == count){
return this;
};
this.range(start+1, count)
}
It's functional in that it modifies the array how I intend it to, but there's no return value.
test = new Array;
test.range(0,3);
console.log(test);
Will output [0,1,2], but
test = new Array;
console.log(test.range(0,3));
Gives me undefined. Can someone explain to me why "return this;" in a prototyped method doesn't actually return the object?
Thanks.
您需要从初始呼叫返回。
return this.range(start + 1, count);
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