dojo.toJson

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dojo的帮助文档(是越来越差了,不打算让人用了?)里并没有讲toJson究竟对哪些类型可用。做了一个小测试:

function f(a, b){
    console.log();
}
console.log("dojo.toJson(f) outputs:")
console.log(dojo.toJson(f));
console.log("\ndojo.toJson(f.toString() outputs:");
console.log(dojo.toJson(f.toString()));
console.log("\ndojo.toJson(date) outputs:");
console.log(dojo.toJson(new Date()));
console.log("\ndojo.toJson(array) outputs:");
console.log(dojo.toJson([1,2,3]));
console.log("\ndojo.toJson(object) outputs:");
console.log(dojo.toJson({key:value}));
console.log("\ndojo.toJson(html markup) outputs:");
console.log(dojo.toJson(""));
输出结果是:
dojo.toJson(f) outputs:
undefined
dojo.toJson(f.toString() outputs:
"function f(a, b) {\n console.log();\n}"
dojo.toJson(date) outputs:
"2012-02-17T13:19:50.895Z"
dojo.toJson(array) outputs:
[1,2,3]
dojo.toJson(object) outputs:
{}
dojo.toJson(html markup) outputs:
log: ""

喜欢这篇文章?阳光宝盒就是使用DOJO开发的,去看看吧。

这里的结果中,需要注意的是,对Date类型,有时候dojo.toJson会出错,从而使得返回为空集合{}。似乎在IE下更常见。看下面的例子:

var a = {
    lastTime : new Date()
};

dojo.toJson(a);

在FF里和IE的控制台里,两者得到不同的结果,在IE下会是:

"{"lastTime":{}}"
 

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