DIFFERENCE OF SEMICOLON ( ; ) HOW??

Question

for(var i=1;i<=10;i++){
for(var k=1;k<=10;k++)
document.write(i," * ",k," = ",k*i,"<br/>")
}
// output table from 1 to 10
But when we apply semi colon ( ; )
Then it's totally changed

for(var i=1;i<=10;i++){
for(var k=1;k<=10;k++);
document.write(i," * ",k," = ",k*i,"<br/>")
}
//output table of 11

https://code.sololearn.com/WCiuo1jbU1r9/?ref=app

Answer 1

When you write:
for (var k = 1; k <= 10; k++);
Thats just a for loop whitout a body

So it will run just as normal incrementing the variable k by 1 on each iteration

Then when k == 11
The k <= 10 part of loop is not satisfied so it will end and move on to the next statement:

document.write(... k * i...) // 11 times every number from 1 to 10