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IgorDePaula/index.js

Created August 1, 2019 14:29
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reducer count names js
Raw
index.js
var names = ['Alice', 'Bob', 'Tiff', 'Bruce', 'Alice'];
var countedNames = names.reduce(function (allNames, name) {
if (name in allNames) {
allNames[name]++;
}
else {
allNames[name] = 1;
}
return allNames;
}, {});
console.log(countedNames)
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