need help on getting a value from “{”k1“:”v1“, ”k2“:”v2“}”

Question

i got a result from someone else code

elem.getAttribute("additional-attributes")

...the result is like:

"{"k1":"v1", "k2":"v2"}"

so do I have to parse the string to get "v2" from "k2"? or are there better ways to get the value?

Thanks!

Answer 1

You could just split on comma then colon. Or a simple regex could do the trick.

Answer 2

If the string is like this actually (note the ' as a string operator):

var string = '{"k1":"v1", "k2":"v2"}'

You can do this (to convert that string into JS object):

var obj = eval("("+string+")");

And then to access k2 value do this:

var k2value = obj.k2;

If the string is badly formated, you can reformat it so it is valid JS string, and then do the eval() on it to make it an object.

Answer 3

OK，所以您想使用JSON.parse获取对象，然后使用obj.k1或obj.k2获取值...