"{"A":"5","B":"4","C":"3","D":"2"}"分别取出ABCD

转自 https://segmentfault.com/q/1010000007144114/a-1020000007144741

取键

'{"A":"5","B":"4","C":"3","D":"2"}'.match(/"\w+"\:/g).map(function(el){return el.slice(1,-2)})


["A", "B", "C", "D"]

取值

'{"A":"5","B":"4","C":"3","D":"2"}'.replace(/(?:"[^"]+":)|["{}]/g,'').split(',')
["5", "4", "3", "2"]

str = '{"A":"5","B":"4","C":"3","D":"2"}';
str.split(/(?:^\{|",)"[^"]+":"|"\}$/g).slice(1,-1)
["5", "4", "3", "2"]

str.split(/[{"][^:]+:"|"\}/g).slice(1,-1)
["5", "4", "3", "2"]