Polyfill for the String Substitutions by console.
console of web browser supports the String Substitutions. It is very useful for debugging, etc.
For example, the multiple variables don't have to be joined by
userName: foo, index: 123
But some browsers such as Android browser, etc. don't support it. A big problem is that all arguments except a first argument (i.e. important informations more than first one) are ignored.
This polyfill implements the String Substitutions to the console that does not support it. This does nothing if the console already supports it.
The following methods support the String Substitutions:
The following substitution strings are supported: