ProgramGuruTo sort a map by values in TypeScript, you can convert the map to an array of key-value pairs, sort the array by values, and then convert it back to a map. This method provides a straightforward way to ensure the map is sorted by values.
We can sort a map by values in TypeScript by converting the map to an array of key-value pairs, sorting the array by values, and then converting it back to a map.
For example,
myMap with some key-value pairs. In this example, the map has string keys and integer values.Array.from method.sort method.Map constructor.console.log function to verify the sorting.const myMap = new Map<string, number>([
['apple', 3],
['banana', 1],
['cherry', 2]
]);
// Convert the map to an array of key-value pairs
const sortedArray = Array.from(myMap).sort((a, b) => a[1] - b[1]);
// Create a new map from the sorted array
const sortedMap = new Map(sortedArray);
// Print the sorted map
console.log('Sorted Map by Values:', Array.from(sortedMap));Sorted Map by Values: [['banana', 1], ['cherry', 2], ['apple', 3]]
We can sort a map by values in descending order in TypeScript by converting the map to an array of key-value pairs, sorting the array by values in descending order, and then converting it back to a map.
For example,
myMap with some key-value pairs. In this example, the map has string keys and integer values.Array.from method.sort method with a custom comparator.Map constructor.console.log function to verify the sorting.const myMap = new Map<string, number>([
['apple', 3],
['banana', 1],
['cherry', 2]
]);
// Convert the map to an array of key-value pairs
const sortedArray = Array.from(myMap).sort((a, b) => b[1] - a[1]);
// Create a new map from the sorted array
const sortedMap = new Map(sortedArray);
// Print the sorted map
console.log('Sorted Map by Values (Descending):', Array.from(sortedMap));Sorted Map by Values (Descending): [['apple', 3], ['cherry', 2], ['banana', 1]]
We can sort a map with numeric keys by values in TypeScript by converting the map to an array of key-value pairs, sorting the array by values, and then converting it back to a map.
For example,
myMap with some key-value pairs. In this example, the map has numeric keys and string values.Array.from method.sort method.Map constructor.console.log function to verify the sorting.const myMap = new Map<number, string>([
[3, 'three'],
[1, 'one'],
[2, 'two']
]);
// Convert the map to an array of key-value pairs
const sortedArray = Array.from(myMap).sort((a, b) => a[1].localeCompare(b[1]));
// Create a new map from the sorted array
const sortedMap = new Map(sortedArray);
// Print the sorted map
console.log('Sorted Map by Values:', Array.from(sortedMap));Sorted Map by Values: [[1, 'one'], [2, 'two'], [3, 'three']]
In this tutorial, we learned How to Sort a Map by Values in TypeScript language with well detailed examples.