[英]How do I turn a javascript dictionary into an encoded url string?
I'd like to get something like我想得到类似的东西
?key=value?key=value
out of a js dictionary that is从一个 js 字典中
{
key:value,
key:value
}
If using jQuery, you can use jQuery.param
:如果使用 jQuery,您可以使用
jQuery.param
:
var params = { width:1680, height:1050 };
var str = jQuery.param( params );
// str is now 'width=1680&height=1050'
Otherwise, here is a function that does it:否则,这是一个 function :
function serialize(obj) {
var str = [];
for(var p in obj)
str.push(encodeURIComponent(p) + "=" + encodeURIComponent(obj[p]));
return str.join("&");
}
alert(serialize({test: 12, foo: "bar"}));
The same in ECMAScript 2016:在 ECMAScript 2016 中也是如此:
let params = { width:1680, height:1050 };
// convert object to list -- to enable .map
let data = Object.entries(params);
// encode every parameter (unpack list into 2 variables)
data = data.map(([k, v]) => `${encodeURIComponent(k)}=${encodeURIComponent(v)}`);
// combine into string
let query = data.join('&');
console.log(query); // => width=1680&height=1050
Or, as single-liner:或者,作为单线:
let params = { width:1680, height:1050 };
Object.entries(params).map(([k, v]) => `${encodeURIComponent(k)}=${encodeURIComponent(v)}`).join('&');
// => "width=1680&height=1050"
There is a much simpler way to do this now:现在有一种更简单的方法可以做到这一点:
API for URLSearchParams
is here URLSearchParams 的
URLSearchParams
在这里
var url = new URL('https://example.com/');
url.search = new URLSearchParams({blah: 'lalala', rawr: 'arwrar'});
console.log(url.toString()); // https://example.com/?blah=lalala&rawr=arwrar
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