Can i get oral explanation of javascript

Question

Emmanuel aje

Answer 1

https://youtu.be/Gy87ZS5sb1w

Answer 2

if this is true...do this piece of code. if it isnt true..then do this other piece of code instead.

var x = 5;

if( x = 5 ) {then jump }
else{ run}

since it is 5 it jumps..if var x was 4 it would run.

Answer 3

Thanks a lot