difference between Function Expression and Declaration

Asked Dec 29 '19 at 16:06

Active Dec 29 '19 at 16:09

Viewed 19 times

var sing2 = () => {
  console.log("Function Expression")
}

function sing2() {
  console.log("Function Declaration")
}
sing2()

When I run the above function , I got output as Function Expression but when I ran the below code

function sing2() {
  console.log("Function Expression")
}

function sing2() {
  console.log("Function Declaration")
}
sing2()

I got output as Function Declaration can someone help me understand reason behind this .

edited Dec 29 '19 at 16:09

mplungjan

asked Dec 29 '19 at 16:06

var hoisting is the reason for this – mplungjan Dec 29 '19 at 16:11
can you explain a bit more on this @mplungjan – Dec 29 '19 at 16:19
See the dupe. basically the var will take precedence over the var that is defined by the function – mplungjan Dec 29 '19 at 16:40

0 Answers0