isSubset Determine if arr1 is a subset of arr2 Usage // npm install is-a-subset --save // *.js const isSubset = require('is-a-subset').default; console.log(isSubset([1,2],[2,1])) // => true isSubset([{id:1},{id:2}],[{id:2},{id:1}],(a,b)=>a.id===b.id) // => true