I'm confuse about why is the code passes. but without the {} in the code. iDK if I'm doing something right or the code just gets anger at me for try to push so many different way

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#1

function lifePhase(age) {
if (age >= 0 && age <= 3)
return ‘baby’;
else if
(age >= 4 && age <= 12)
return ‘child’;
else if
(age >= 13 && age <= 19)
return ‘teen’;
else if
(age >= 20 && age <= 64)
return ‘adult’
else if
(age >= 65 && age <= 140)
return ‘senior citizen’
else
return ‘This is not a valid age’;

}

#2

Here is your code but run through a formatter to make it easier to see why you didn’t need the curly braces {} in this case:

function lifePhase(age) {
  if (age >= 0 && age <= 3) return 'baby';
  else if (age >= 4 && age <= 12) return 'child';
  else if (age >= 13 && age <= 19) return 'teen';
  else if (age >= 20 && age <= 64) return 'adult';
  else if (age >= 65 && age <= 140) return 'senior citizen';
  else return 'This is not a valid age';
}

Since you aren’t running more than one line of code after each condition, the curly braces to tell JavaScript which lines are part of the code block weren’t required.

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#3

okay, I understand somewhat. I thank you for the time to answer that.

#4

To make it a little clearer, here is your code reformatted, but then one condition where we are logging something too. Now the curly braces {} were required

function lifePhase(age) {
  if (age >= 0 && age <= 3) return 'baby';
  else if (age >= 4 && age <= 12) return 'child';
  else if (age >= 13 && age <= 19) return 'teen';
  else if (age >= 20 && age <= 64) {
    console.log('The person is an adult.');
    return 'adult';
  } else if (age >= 65 && age <= 140) return 'senior citizen';
  else return 'This is not a valid age';
}
#5

okay I get it. you’re asking to display ‘The person is an adult’. so a new line of code has to run a new block. if I’m wording that correctly.

#6

When you all get past this discussion, consider what happens when age is a float.

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#7

That was my same thought when I first completed this exercise :laughing:

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#8

Someone once told me, “messy is missy,” and it took me a minute to grasp the meaning. Later I recognized it was, excess of logic leads to excess of exclusions.

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#9

Moral of the story is to leave the door open to floats, and if needs be, narrow it to integers. We cannot go the other way.

if (x < 0 || x > 140) return "This is not a valid age";

if (x < 3) return 'baby'
if (x < 13) return 'child'
if (x < 20) return 'teen'
if (x < 65) return 'adult'
return 'senior citizen'

The above is what I call, progressiveness over betweenness.

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#10

I’m working hard to get out of the beginning! lol. I’m heading to betweenness

2 Likes
#11

Think of the simplified logic. If it is not less than 3 then what is it? Greater or equal, by default. If it is not less than 13 then what is it? Greater or equal, again by default. &c.

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