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

renedoukhan
renedoukhan
4,761 Points
Posted by renedoukhan
renedoukhan
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
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'
}

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

1 Answer