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# code challenge problem

I am having trouble with the following code challenge.

Create a for loop that logs the numbers 4 to 156 to the console. To log a value to the console use the console.log( ) method.

script.js
```var j = "";
for (var i = 4; i == 156; i = i + 1) {
j = j + i;
}
console.log(i);
```

Hello Aaron,

Why not do:

```var j = "";
for (var i = 4; i <= 156; i++) {
console.log(i);
j = j + i;
}
```

Hi,

You problem is the for loop:

```var j = "";
for (var i = 4; i == 156; i = i + 1) {
j = j + i;
}
console.log(i);
```

Should be:

```for (var i = 4; i <= 156; i = i + 1) {
console.log(i);
}
```

If you want to log all the numbers then the console.log needs to be in the loop.

And quick explain of the FOR loop:

for ("var i = 4"; "i <= 156"; "i += 1") { "sample_expressions" }

1. "var i = 4" -> this is the first part of the loop and you use it to declare and initialise a counter for the loop
2. "i < 156" -> this is the conditional statement which checks the boolean value of the expression - in the first run i = 0 and this evaluates to True cos 4 is less than 156
3. then the body of the loop is executed "sample-expressions" -> the value of i in sent to the console output
4. "i += 1" -> the counter is incremented (or decremented: depends on what you write )

Hope this clarifies a bit.

Giorgi and Nejc both have great answers.

However, you can make it a little simpler still by just cutting out `j` (which isn't necessary for this challenge).

I've broken up the code into multiple lines so I can point out some things that are different than yours.

```for ( var i=4; // This starts off the for loop at the number 4.
i<=156;  // Instead of testing for the condition of i==156
// (which only runs when i is equal to 156), I'm
// testing for i<=156 (which runs as long as
// i is less than or equal to 156).
i++ ) {  // This is just Javascript's incremental iterator shorthand
console.log(i); // Logs i to the console for each pass through the loop.
}
```

And there you go! The same behavior with less code!

Here's a version without all of the comments:

```for ( var i=4; i<=156; i++) {
console.log(i);
}
```