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How to do multidimensional array intersection using JavaScript?
We are required to write a JavaScript function that takes in a multidimensional array of arrays of literal values. Our function should return the intersecting array of all the subarrays present in the input array.
Example
The code for this will be −
const arr = [ ["garden","canons","philips","universal"], ["universal","ola","uber","bangalore"] ]; const findMultiIntersection = (arr = []) => { const res = []; arr.forEach(el => { const thisObj = this; el.forEach(element => { if(!thisObj[element]){ thisObj[element] = true; } else{ res.push(element) }; }); }, {}); return res; }; console.log(findMultiIntersection(arr));
Output
And the output in the console will be −
[ 'universal' ]
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