Your task is to create a tool that solves sudokus of dimensions 9 x 9. Program should accept a string, which is deconstructed sudoku with underscores in places were number should be.
"___26_7_168__7__9_19___45__82_1___4___46_29___5___3_28__93___74_4__5__367_3_18___"
Return of the program should be a string as well but with all numbers filled out.
"435269781682571493197834562826195347374682915951743628519326874248957136763418259"
npm install
npm test