find the range of all keys in a map in javascript

To find the range of all keys in a JavaScript Map object, you can use the spread operator ... to convert the Map object into an array of key-value pairs, and then use the Math.min() and Math.max() functions to find the minimum and maximum values.

Here's an example code snippet to accomplish this:

index.tsx
const myMap = new Map([
  ['a', 1],
  ['b', 2],
  ['c', 3],
]);

const keysArray = [...myMap.keys()]; // convert Map object to array of keys
const minKey = Math.min(...keysArray); // find minimum key
const maxKey = Math.max(...keysArray); // find maximum key

console.log(`Range of keys: ${minKey} - ${maxKey}`);
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This code creates a new Map object with some key-value pairs, converts the keys to an array, finds the minimum and maximum keys in the array, and logs the range of keys to the console.