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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops A Closer Look at Loop Conditions

4,761 Points

var secret

why shouldn't reuse the keyword var with var inside the function once it was defined outside the function ?

Andrew Robinson
Andrew Robinson
16,372 Points

You can reuse the var keyword but if you define a variable outside of a function and then inside of a function with the same name, the function will only access the one defined inside, it's generally is bad practice to reuse variable names though.

So for example:

var message = 'hello';

function print() {
  var message = 'hello2';
  console.log(message); //prints 'hello2'

console.log(message); //prints 'hello'

1 Answer