get_todos() Understand get_todos() function and all parts

function get_todos() {
var todos = new Array;
var todos_str = localStorage.getItem('todo');
if (todos_str !== null) {
todos = JSON.parse(todos_str);
}
return todos;
}

Start with the get_todos() function shown in the issue and inspect the repository for its callers and localStorage usage. The issue does not identify a documentation location or a specific change, so clarify the intended output before proceeding; done should mean the function's parts and behavior are clearly explained.

Written by the indexing model from the issue text.