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- var primes = [];
- var backwardsArray = [];
- function backwardsPrime(start, stop){
- for(var i = start; i <= stop; i++){
- if (isPrime(i)){
- primes.push(i);
- }
- }
- console.log(primes);
- // for(var i = 0; i <= primes.length; i++){
- // var reversed = reverseString(primes[i]);
- // backwardsArray.push(Number(reversed));
- // console.log(backwardsArray);
- // }
- // return primes;
- backwardsArray = primes.map(function(x){return Number(reverseString(x));});
- console.log(backwardsArray);
- backwardsArray = backwardsArray.filter(isPrime);
- return backwardsArray.map(function(x){return Number(reverseString(x));});;
- }
- function reverseString(str) {
- var revstr = str.toString().split("").reverse().join("");
- return revstr;
- }
- function isPrime(value) {
- for(var i = 2; i < value; i++) {
- if(value % i === 0) {
- return false;
- }
- }
- return value > 1;
- }
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