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Array cardio 1 #10

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Merged
wcski merged 3 commits into from
Oct 11, 2017
Merged

Array cardio 1 #10

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6cb6a23
gets an aray of dom elements containing specific text
Oct 11, 2017
58b2cd7
added sort with split
Oct 11, 2017
30cc415
added reduce function
Oct 11, 2017
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20 changes: 20 additions & 0 deletions 04 - Array Cardio Day 1/index-START.html
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Expand Up @@ -63,14 +63,34 @@

// 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
// https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
/*const category = document.querySelector('.mw-category');
const links = [...category.querySelectorAll('a')];
const de = links
.map(link => link.textContent)
.filter(streetName => streetName.includes('de'));*/


// 7. sort Exercise
// Sort the people alphabetically by last name
const alphabeticalSort = people.sort((a, b) => {
const [aLast, aFirst] = a.split(', ');
const [bLast, bFirst] = b.split(', ');
return aLast > bLast ? 1 : -1;
});
console.log(alphabeticalSort);

// 8. Reduce Exercise
// Sum up the instances of each of these
const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck' ];
const sum = data.reduce(function(obj, item) {
if(!obj[item]){
obj[item] = 0;
}
obj[item]++;
return obj;
}, {});

console.log(sum);

</script>
</body>
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