finished callbacks #1
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Ian84Be
reviewed
May 8, 2019
| // } | ||
| // console.log(fullName); | ||
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| runners.forEach(function(names){ |
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perfect way to do this. you could also refactor this to ES6 fat arrow syntax.
runners.forEach(names =>
fullName.push(`${names.first_name} ${names.last_name}`)
);
| console.log(allCaps); | ||
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| // ==== Challenge 3: Use .filter() ==== | ||
| // The large shirts won't be available for the event due to an ordering issue. Get a list of runners with large sized shirts so they can choose a different size. Return an array named largeShirts that contains information about the runners that have a shirt size of L and log the result | ||
| let largeShirts = []; | ||
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| largeShirts = runners.filter(shirt => shirt.shirt_size === 'L') |
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excellent use of the fat arrow.
| // The donations need to be tallied up and reported for tax purposes. Add up all the donations into a ticketPriceTotal array and log the result | ||
| let ticketPriceTotal = []; | ||
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| ticketPriceTotal = runners.reduce(function(ticket,item){ |
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this could also be refactored into ES6
ticketPriceTotal = runners.reduce((ticket,item) =>
ticket += item.donation, 0);
| @@ -1,21 +1,43 @@ | |||
| // ==== Challenge 1: Write your own closure ==== | |||
| // Write a simple closure of your own creation. Keep it simple! | |||
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| function sayHello(name) { | |||
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good job with this. you could also strip it down a bit more, the template literal does not require parens, and you can drop the curly braces from the say function.
function sayHello(name) {
const text = `Hello ${name}`;
const say = () => console.log(text);
say();
}
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| /* STRETCH PROBLEMS, Do not attempt until you have completed all previous tasks for today's project files */ | ||
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| // ==== Challenge 2: Create a counter function ==== | ||
| const counter = () => { | ||
| // Return a function that when invoked increments and returns a counter variable. | ||
| let count = 0; | ||
| return(function() { return( ++count); }) |
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great job making use of javascript closure.
again you could make use of the ES6 syntax to clean up this function
const counter = () => {
let count = 0;
return () => ++count;
}
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