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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops Create a for Loop

Code challenge help please


Instruction: 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.

I can't see why I'm getting a syntax error no matter how hard I look. Can someone please explain?

var conNum = '';

for (var i = 4; i < 4;  i > 156; i += 1;) {
  conNum = i;

2 Answers

Hi Charles

Almost there with your loop. your passing too many arguments to the for loop for what you need.

the for loop folows the following syntax:

for ([initialExpression]; [condition]; [incrementExpression])
  • First, set the initial expression - We want the loop to start at 4
  • Second, set the condition - We want the loop to iterate up to 156 (i less than or equal to 156)
  • Third, increment i each loop iteration - i++
for ( var i = 4; i <= 156; i++ ) {
  conNum = i;

Also, you are console logging outside the loop, if you wan to log every iteration add the console log inside the loop which gives the final solution looking like below:

for( var i = 4; i <= 156; i++ ) {

Does this make sense?

why does "i+=1" not work? Does it not do the same thing?

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

That makes a lot of sense. Thanks