Javascript

Question

What is wrong in this code?
var s=0;

for(s=0;s<=25;s++){
if(5<=s<=10){
continue;
}
document.write(s+"<br/>");
}

PLEASE ANSWER ME...I'M LOOSING MY HEAD!

Answer 1

I think the compound conditional "5<=s<=10" is not valid. Try to split it with an 'and' operator: "5<=s && s<=10".

Answer 2

@Alvaro is right, it's work with:

var s=0;

for (s=0;s<=25;s++){
if(5<=s&&s<=10){
continue;
}
document.write(s+"<br/>");
}

Personally, I prefer to be explicit with conditions priority, so I add parenthesis, and sometimes few more space to be better readable:

if ( (5<=s) && (s<=10) )

If you have only one instruction in the statement block, the curly brackets are optional, so you can shorten the code like this:

for ( var s=0; s<=25; s++) {
if ( (5<=s) && (s<=10) ) continue;
document.write(s+"<br/>");
}

... or even ( breaking long lines is useful for readability ):

for ( var s=0; s<=25; s++) {
if ( (5<=s) && (s<=10) )
continue;
document.write(s+"<br/>");
}