Sha256: ad204d94efc8e02657e872a73e3eb7a55b2eec8bed2147de4e212f46424d5656
Contents?: true
Size: 1.04 KB
Versions: 30
Compression:
Stored size: 1.04 KB
Contents
export default class Series {
constructor(numberString) {
if(numberString.match('[^0-9]')) {
throw new Error('Invalid input.');
}
this.numberString = numberString;
this.digits = this.getDigits();
}
getDigits() {
return [...this.numberString].map( digit => {
return parseInt(digit, 10);
});
}
largestProduct(size) {
if (size < 0) {
throw new Error('Invalid input.');
}
let product,
max = 0;
this.slices(size).forEach( slice => {
product = slice.reduce( (a, b) => {
return a * b;
}, 1);
if (product > max) {
max = product;
}
});
return max;
}
slices(sliceSize) {
const result = [];
let slice = [];
if (sliceSize > this.digits.length) {
throw new Error('Slice size is too big.');
}
for (let i = 0; i < this.digits.length - sliceSize + 1; i++) {
for (let j = 0; j < sliceSize; j++) {
slice.push(this.digits[i + j]);
}
result.push(slice);
slice = [];
}
return result;
}
}
Version data entries
30 entries across 30 versions & 1 rubygems