JS in HTML custom format string method

The format method for formatting a string in Python

JS can be implemented by a custom method

1String.prototype.Format =function (args) {2     /*This represents the string to invoke the Format method*/3     /*The first parameter of replace is a regular expression, and g is the processing of all the strings that are matched to, using//wrapping them in JS*/4     /*The second parameter of replace is the processing of the matching string, and the K1 match result contains {},K2 only the contents of {}, and G represents the match for all*/5     return  This. Replace (/\{(\w+) \}/g, function (k1, K2) {6 Console.log (K1, K2);7         returnARGS[K2];8     });9};

JS in HTML custom format string method