Looking to construct an object consisting of empty arrays using values as keys.
const CATEGORIES = ['apple', 'banana', 'orange']
generateCategoryObject() === { apple: [], banana: [], orange: []}
function generateCategoryObject() {
const categoryObj = {}
for (const fruit of CATEGORIES) {
categoryObj[fruit] = [];
}
return categoryObj;
}
Hoping to enhance my understanding of ES6. Any suggestions on a concise solution for this?
Using FILTERS.reduce((x,y) => Object.assign(x, { [y]: []}), {})If you want to try out a different approach, consider utilizing the modern Object.fromEntries() method. Nonetheless, always verify the browser compatibility before implementation. Here's an example where Object.fromEntries() is combined with Array.map():
const FILTERS = ['foo', 'bar', 'baz'];
let res = Object.fromEntries(FILTERS.map(x => [x, []]));
console.log(res);.as-console {background-color:black !important; color:lime;}
.as-console-wrapper {max-height:100% !important; top:0;}If you're comfortable with post-ES6, you can utilize Object.fromEntries:
Object.fromEntries(FILTER.map(keyword => [keyword, []]))
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