用大括号分割字符串成为参数

Question

If I have a input value "a[123],b[456],c[789]" and I want to return as "a=123&b=456&c789"

I've tried below code but no luck.. Is there a correct way to implement this?

 var str = "a[123],b[456],c[789]" var string = (str).split(/\\[|,|\\]/); alert(string); 

Answer 1

One option is:

var rep = { '[': '=', ']': '', ',': '&' };
var query = str.replace(/[[,\]]/g, el => rep[el] );

Answer 2

The delimiters are already there, it's just a matter of replacing one delimiter with another. Replace each [ with an = , replace each , with an & , and remove all ] .

 var str = "a[123],b[456],c[789]" var string = str.replace(/([az])\\[(\\d+)],?/g, '$1=$2&').slice(0, -1); alert(string); 

Answer 3

Brute force way im not good at Regex. Just adding my thoughts

  var str = "a[123],b[456],c[789]" str = str.replace(/],/g, '&'); str = str.replace(/\\[/g, '='); str = str.replace(/]/g,''); alert(str); 

Answer 4

The simple 2 line answer for this is:

str=str.replace(/,/g,"&");
str=str.replace(/(\w)\[(\d+)\]/g,"$1=$2");