ProgramGuruTo clear all key-value pairs from a map in TypeScript, you can use the clear method. This method removes all elements from the map, leaving it empty.
We can clear all key-value pairs from a map in TypeScript using the clear method, which removes all elements from the map.
For example,
myMap with some key-value pairs. In this example, the map has string keys and integer values.clear method to remove all key-value pairs from the map.size property to verify that the map is empty.const myMap: Map<string, number> = new Map([
['one', 1],
['two', 2],
['three', 3]
]);
// Clear all key-value pairs using clear method
myMap.clear();
// Print the size of the map
console.log(`Size of the map after clearing: ${myMap.size}`);Size of the map after clearing: 0
We can use the clear method on an already empty map in TypeScript, and it will still leave the map empty.
For example,
myMap. In this example, the map has string keys and integer values.clear method to remove all key-value pairs from the map, even though it is already empty.size property to verify that the map is still empty.const myMap: Map<string, number> = new Map();
// Clear the map using clear method
myMap.clear();
// Print the size of the map
console.log(`Size of the map after clearing: ${myMap.size}`);Size of the map after clearing: 0
We can insert key-value pairs into a map and then clear all key-value pairs using the clear method.
For example,
myMap and inserting some key-value pairs into it. In this example, the map has string keys and integer values.clear method to remove all key-value pairs from the map.size property to verify that the map is empty.const myMap: Map<string, number> = new Map();
myMap.set('one', 1);
myMap.set('two', 2);
myMap.set('three', 3);
// Clear all key-value pairs using clear method
myMap.clear();
// Print the size of the map
console.log(`Size of the map after clearing: ${myMap.size}`);Size of the map after clearing: 0
In this tutorial, we learned How to Clear All Key-Value Pairs from a Map in TypeScript language with well detailed examples.