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number_length solution in Uncategorized category for Number Length by Jon_Red
// number_length.js
import assert from'assert';
function numberLength(value:number):number{return value.toString().length;}
// self-checks
assert.equal(numberLength(10),2);
assert.equal(numberLength(0),1);
assert.equal(numberLength(4),1);
assert.equal(numberLength(44),2);
June 30, 2020