Function oddNumbers(){
Var odds ="";
For(index=0; index <=10; index ++){
If(index%2 !=0){odds+=index +"."}
}
}
OddNumbers();
Trying to count all odd counting numbers up then back down again in a for loop. I can get it to go up with the code again. But when I try nested for I cannot get it to go back down again in the same loop. How would I get it to loop up then back down?
Assuming you want to use only one loop definition, you have to define custom conditionExpression and incrementExpression.
Here is a quick example.
var direction = 1;
//REM: What gets added on each iteration?
function incrementExpression(){
//REM: Increase or decrease depending on direction
return 1*direction
}
//REM: What gets evaluated on each iteration?
function conditionExpression(i){
if(i < 10 && direction === 1){
return true
}
if(i === 10 && direction === 1){
direction = -1
return true
}
if(i >= 0 && direction === -1){
direction = -1
return true
};
//REM: Returns false if direction downwards and i lower zero
return false
}
for(var i=0; conditionExpression(i); i+=incrementExpression(i)){
console.log(i)
}You can reverse your for loop on your use-case. See code snippet below:
function oddNumbers() {
var odds = "";
for(index=0; index <=10; index ++){
if(index%2 !=0) {
odds+=index +"."
console.log(odds);
}
}
for(index = 10; index > 0; index--) {
if(index % 2 != 0) {
odds+=index +"."
console.log(odds);
}
}
}
oddNumbers();Im not sure if that's what you want but that's what I understand on your given code on your question.