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solved it #2

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15 changes: 15 additions & 0 deletions isNumberPalindrome.js
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Original file line number Diff line number Diff line change
Expand Up @@ -32,3 +32,18 @@ const isNumberPalindrome = (number) => {
return reversed === number;
}
*/

const isNumberPalindrome = (number) => {
let numCopy = number;
let reversedNum = null;
let digit = null;

while (numCopy > 0){
digit = numCopy % 10;
reversedNum = reversedNum * 10 + digit;
numCopy = Math.floor(numCopy / 10);
}
return reversedNum === number;
}


11 changes: 11 additions & 0 deletions longestCommonPrefix.js
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Original file line number Diff line number Diff line change
Expand Up @@ -39,3 +39,14 @@ const longestCommonPrefix = arrayOfStrings => {
is empty)
};
*/

const longestCommonPrefix = (arr) => {
let longestCommonPrefix = arr[0];
for (let i = 1; i < arr.length; i++){
let str = arr[i];
while (str.indexOf(longestCommonPrefix) === -1){
longestCommonPrefix = longestCommonPrefix.slice(0,-1);
}
}
return longestCommonPrefix
}