js sort 1 or -1
function compare(a, b) {
if (a is less than b by some ordering criterion) {
return -1;
}
if (a is greater than b by the ordering criterion) {
return 1;
}
// a must be equal to b
return 0;
}js sort 1 or -1
function compare(a, b) {
if (a is less than b by some ordering criterion) {
return -1;
}
if (a is greater than b by the ordering criterion) {
return 1;
}
// a must be equal to b
return 0;
}why sort() return - 1 js
var arr=[1,2,3,4,5,6,100,999]
arr.sort((a,b)=>{
if (a%2==b%2) return a-b;
if (a%2>b%2) return -1;
return 1;
})
console.log(arr)
//output: [ 1, 3, 5, 999, 2, 4, 6, 100 ]Copyright © 2021 Codeinu
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