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Javascript 2021-10-10 04:33:13
reverse key and value in object js
//The concise way by using ES6 syntax like this. const obj = {A : 1, B : 2, C : 3, D : 4} function objectFlip(obj) { return Object.entries(obj).reduce((acc, [key, value]) => (acc[value] = key, acc), {}) } console.log('input: ',obj); console.lo... Add solution -
Javascript 2021-09-26 15:43:02
javascript remove duplicate in two arrays
// 1. filter() function removeDuplicates(array) { return array.filter((a, b) => array.indexOf(a) === b) }; // 2. forEach() function removeDuplicates(array) { let x = {}; array.forEach(function(i) { if(!x[i]) { x[i] = true } }) r... Add solution -
Javascript 2021-09-03 13:01:02
sort arrays according to first array js
function sortObjectByKeys(o) { return Object.keys(o).sort().reduce((r, k) => (r[k] = o[k], r), {}); } var unsorted = {"c":"crane","b":"boy","a":"ant"}; var sorted=sortObjectByKeys(unso... Add solution