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JavaScript JavaScript Array Iteration Methods Array Manipulation Practice map()

Posted by Ewerton Luna
.a{fill-rule:evenodd;}techdegree seal-36
Ewerton Luna
Full Stack JavaScript Techdegree Graduate 24,031 Points

Could someone please help me pass this challenge?

I don't understand why this code won't work. I've tested this calling abbreviateString() on and it works, but for some reason I'm not passing this challenge. I'm getting unexpected identifier at line 12 (no idea why). Any help will be very appreciated.

Thank you!

app.js 
const daysOfWeek = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
let abbreviatedDays;

// abbreviatedDays should be: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
// Write your code below

const abbreviateString = string => {
    let result = '';
    let i = 0;

    for (let character of string){
        if (i < 3){
            result += character;
        }
        else {
            break;
        }
        i += 1;
    }
    return result;
};


abbreviateDays = daysOfWeek.map(abbreviateString);

1 Answer

<noob />
<noob />
17,062 Points
<noob />
<noob />
17,062 Points

First of all your syntax is wrong and ur being ask to manipluate the data with the map() method. You first need to think the steps to do this:

  1. u need to somehow loop thorugh an array in a way that let u modify the array >> You can do it with the .map() method! 2.u need to think how to cut the first 3 letters from each day in the array >> You can do it with the substring() method , reference:https://www.w3schools.com/jsref/jsref_substring.asp

try to watch the videos again and try again the challange, ull figure this out, if not let me know and ill post the answer

Ewerton Luna
.a{fill-rule:evenodd;}techdegree seal-36
Ewerton Luna
Full Stack JavaScript Techdegree Graduate 24,031 Points

Thank you for helping with the substring method!

But regarding the syntax, where is it incorrect exactly? I don't think it's incorrect at all because a ran this same code in VS Code and it ran ok. The abbreviated array was created correctly. And I'm also using the map method. Before using it, I created a function that works kinda like what substring() would in this case. But I do think the challenge will only accept if the substring method is used. Anyway, thank you for taking the time!