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Finding the smallest fitting number in JavaScript
We are required to write a JavaScript function that takes in an array of numbers and returns a number which can exactly divide all the numbers in the array.
Therefore, let’s write the code for this function −
Example
The code for this will be −
const arr = [4, 6, 34, 76, 78, 44, 34, 26, 88, 76, 42];
const dividesAll = el => {
const result = [];
let num;
for (num = Math.floor(el / 2); num > 1; num--){
if (el % num === 0) {
result.push(num);
}
};
return result;
};
const dividesArray = arr => {
return arr.map(dividesAll).reduce((acc, val) => {
return acc.filter(el => val.includes(el));
});
};
console.log(dividesArray(arr));Output
The output in the console will be −
[ 2 ]
Updated on 22-Oct-2020 13:01:47
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