Parsing string with a different character

How can I parse this string "451:45" to a number? What I want to get is "451.45" as number.

Thanks in advance

>Solution :

1. Replace the colon [:] with the dot [.] by using replace method of JS as –

   '451.45'.replace(":", ".");
   

2. Now, we have desired string but as we need number so just parse it into Float by using parseFloat as –

   parseFloat('451.45');
   

   Please find the complete code as –

   let str = '451:45';
   str = str.replace(":", ".");
   str = parseFloat(str);
   
   

Let me know in comments if you need any help further.

Thanks.