使用JSON进行数组推送 [英] array push with JSON
本文介绍了使用JSON进行数组推送的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
有人可以告诉我为什么打印117至300的数字吗?
Can some one tell me why this prints numbers from 117 to 300?
var x = [12, 55, 177];
var y = [25, 75, 255];
var value = [];
for (var i = 1; i <= 300; i++) {
value.push(JSON.stringify(i));
document.write(value);
}
结果:
117, 118, ..., 299, 300
(jsFiddle http://jsfiddle.net/minagabriel/6crZW/)
(jsFiddle http://jsfiddle.net/minagabriel/6crZW/)
推荐答案
之所以这样做,是因为document.write()
是一个古老的讨厌的黑客,不应该使用,并且与jsfiddle不兼容.
It does that because document.write()
is an old nasty hack that shouldn't be used, and isn't compatible with jsfiddle.
如果您将其从循环中删除并添加:
If you remove that from the loop and add:
console.log(value);
最后,您会看到数组已正确堆积.
at the very end you'll see that the array is correctly accumulated.
此外,您可能只想对构建后的数组 进行JSON编码:
Furthermore, you probably only want to JSON encode the array after it's built:
var value = [];
for (var i = 1; i <= 300; i++) {
value.push(i);
}
console.log(JSON.stringify(value));
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