javascript - How to check first 5 chars & last 5 chars of a string? -


I am trying to validate a string only if its first letter is 5 characters and the last 5 letter characters :

What I have tried: 

  var userId = "12345abcde"; // Get the first and the second five characters first = five = userId.substring (0, 5); Var secondFive = userId.substring (5, 10); // Mill Global Letter And Encumbers Of AST = / [a-z, A-Z] / g; Var aNum = / [0- 9] / g; Var c = userId.match (aNum); // First try first first ... if (firstFive === C) {warning ('yes'); } And {warnings ('Nop'); }

this alert nop .

That's because firstFive is the string and c object? Where's the error in my thinking?

Live example:

Any tips? thank you in advanced!

Try 

  / ^ [0-9] {5 }. * [Az] {5} $ / i.test ("12345abcde")

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