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58 lines (37 loc) · 4.96 KB
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/*given 1000 digits as strings, return an ARRAY of the digits as NUMBERS*/
const strNums = ["1","4","1","5","9","2","6","5","3","5","8","9","7","9","3","2","3","8","4","6","2","6","4","3","3","8","3","2","7","9","5","0","2","8","8","4","1","9","7","1","6","9","3","9","9","3","7","5","1","0","5","8","2","0","9","7","4","9","4","4","5","9","2","3","0","7","8","1","6","4","0","6","2","8","6","2","0","8","9","9","8","6","2","8","0","3","4","8","2","5","3","4","2","1","1","7","0","6","7","9","8","2","1","4","8","0","8","6","5","1","3","2","8","2","3","0","6","6","4","7","0","9","3","8","4","4","6","0","9","5","5","0","5","8","2","2","3","1","7","2","5","3","5","9","4","0","8","1","2","8","4","8","1","1","1","7","4","5","0","2","8","4","1","0","2","7","0","1","9","3","8","5","2","1","1","0","5","5","5","9","6","4","4","6","2","2","9","4","8","9","5","4","9","3","0","3","8","1","9","6","4","4","2","8","8","1","0","9","7","5","6","6","5","9","3","3","4","4","6","1","2","8","4","7","5","6","4","8","2","3","3","7","8","6","7","8","3","1","6","5","2","7","1","2","0","1","9","0","9","1","4","5","6","4","8","5","6","6","9","2","3","4","6","0","3","4","8","6","1","0","4","5","4","3","2","6","6","4","8","2","1","3","3","9","3","6","0","7","2","6","0","2","4","9","1","4","1","2","7","3","7","2","4","5","8","7","0","0","6","6","0","6","3","1","5","5","8","8","1","7","4","8","8","1","5","2","0","9","2","0","9","6","2","8","2","9","2","5","4","0","9","1","7","1","5","3","6","4","3","6","7","8","9","2","5","9","0","3","6","0","0","1","1","3","3","0","5","3","0","5","4","8","8","2","0","4","6","6","5","2","1","3","8","4","1","4","6","9","5","1","9","4","1","5","1","1","6","0","9","4","3","3","0","5","7","2","7","0","3","6","5","7","5","9","5","9","1","9","5","3","0","9","2","1","8","6","1","1","7","3","8","1","9","3","2","6","1","1","7","9","3","1","0","5","1","1","8","5","4","8","0","7","4","4","6","2","3","7","9","9","6","2","7","4","9","5","6","7","3","5","1","8","8","5","7","5","2","7","2","4","8","9","1","2","2","7","9","3","8","1","8","3","0","1","1","9","4","9","1","2","9","8","3","3","6","7","3","3","6","2","4","4","0","6","5","6","6","4","3","0","8","6","0","2","1","3","9","4","9","4","6","3","9","5","2","2","4","7","3","7","1","9","0","7","0","2","1","7","9","8","6","0","9","4","3","7","0","2","7","7","0","5","3","9","2","1","7","1","7","6","2","9","3","1","7","6","7","5","2","3","8","4","6","7","4","8","1","8","4","6","7","6","6","9","4","0","5","1","3","2","0","0","0","5","6","8","1","2","7","1","4","5","2","6","3","5","6","0","8","2","7","7","8","5","7","7","1","3","4","2","7","5","7","7","8","9","6","0","9","1","7","3","6","3","7","1","7","8","7","2","1","4","6","8","4","4","0","9","0","1","2","2","4","9","5","3","4","3","0","1","4","6","5","4","9","5","8","5","3","7","1","0","5","0","7","9","2","2","7","9","6","8","9","2","5","8","9","2","3","5","4","2","0","1","9","9","5","6","1","1","2","1","2","9","0","2","1","9","6","0","8","6","4","0","3","4","4","1","8","1","5","9","8","1","3","6","2","9","7","7","4","7","7","1","3","0","9","9","6","0","5","1","8","7","0","7","2","1","1","3","4","9","9","9","9","9","9","8","3","7","2","9","7","8","0","4","9","9","5","1","0","5","9","7","3","1","7","3","2","8","1","6","0","9","6","3","1","8","5","9","5","0","2","4","4","5","9","4","5","5","3","4","6","9","0","8","3","0","2","6","4","2","5","2","2","3","0","8","2","5","3","3","4","4","6","8","5","0","3","5","2","6","1","9","3","1","1","8","8","1","7","1","0","1","0","0","0","3","1","3","7","8","3","8","7","5","2","8","8","6","5","8","7","5","3","3","2","0","8","3","8","1","4","2","0","6","1","7","1","7","7","6","6","9","1","4","7","3","0","3","5","9","8","2","5","3","4","9","0","4","2","8","7","5","5","4","6","8","7","3","1","1","5","9","5","6","2","8","6","3","8","8","2","3","5","3","7","8","7","5","9","3","7","5","1","9","5","7","7","8","1","8","5","7","7","8","0","5","3","2","1","7","1","2","2","6","8","0","6","6","1","3","0","0","1","9","2","7","8","7","6","6","1","1","1","9","5","9","0","9","2","1","6","4","2","0","1","9","8","9"];
// Given 1000 digits of PI as strings, return an array of the digits as numbers
const nums= strNums.map(str=> Number(str));
console.log(nums);
//Find the sum of the Evens//
const sumEvens= nums.reduce((total,num)=>{
if (num%2===0){
total+=num
}
return total
})
console.log(sumEvens);
/* Return an object with counts for each number. The key
should indicate the number and the value should indicate
how many occurrences that number has in the pi array. */
/* for example, the array ['2','5','5','7'] would produce
the following object
{
0: 0,
1: 0,
2: 1,
3: 0,
4: 0,
5: 2,
6: 0,
7: 1,
}
create a similar object for the pi array*/
const numCount = nums.reduce((tally,num)=>{
tally[num]=(tally[num]||0)+1
return tally
}, {})
console.log(numCount);
// // Find the index of the first "Austin" value (the value plus its index equals 512)//
const atxIdx=array.indexOf('Austin');
// console.log(`index: ${atxIdx}, value: ${nums[atxIdx]}`);