在JavaScript中的字符之间替换多个字符串

Question

I'm trying to replace strings with variables in the same way that Python string formatting works.

The string will be in a similar format to:

string = 'Replace $name$ as well as $age$ and $country$';

And I'd like to have a regex operation that will return and array:

['name', 'age', 'country'] or ['$name$', '$age$', '$country$']

So that I can map it to object keys:

{
 name    : 'Bob',
 age     :  50,
 country : 'US'
}

I've seen solutions using string concatenation but I need a solution using regex because I have to rely on strings containing these variables.

Answer 1

You can do this:

var string = 'Replace $name$ as well as $age$ and $country$';
var arr = [];
string.replace(/\$(.+?)\$/g, function(m,g1){ arr.push(g1); return m; });
console.log(arr); // desired output