ProgramGuruTo remove key-value pairs from a map in TypeScript based on values, you need to iterate through the map and check each value. If the value matches the specified condition, remove the corresponding key-value pair.
We can remove key-value pairs from a map in TypeScript by iterating through the map and removing pairs with a specific value.
For example,
myMap with some key-value pairs. In this example, the map has string keys and integer values.2.delete method to remove the key-value pair from the map.console.log function to verify that the key-value pairs have been removed.const myMap: Map<string, number> = new Map([
['one', 1],
['two', 2],
['three', 3],
['four', 2]
]);
// Remove key-value pairs with specific value
for (const [key, value] of myMap) {
if (value === 2) {
myMap.delete(key);
}
}
// Print the contents of the map
console.log(myMap);Map(2) { 'one' => 1, 'three' => 3 }We can remove key-value pairs from a map in TypeScript by iterating through the map and removing pairs with values within a specified range.
For example,
myMap with some key-value pairs. In this example, the map has string keys and integer values.delete method to remove the key-value pair from the map.console.log function to verify that the key-value pairs have been removed.const myMap: Map<string, number> = new Map([
['one', 1],
['two', 2],
['three', 3],
['four', 4]
]);
// Remove key-value pairs with values in the range [2, 3]
for (const [key, value] of myMap) {
if (value >= 2 && value <= 3) {
myMap.delete(key);
}
}
// Print the contents of the map
console.log(myMap);Map(2) { 'one' => 1, 'four' => 4 }We can remove key-value pairs from a map in TypeScript by iterating through the map and removing pairs with values that meet a specified condition.
For example,
myMap with some key-value pairs. In this example, the map has string keys and string values.delete method to remove the key-value pair from the map.console.log function to verify that the key-value pairs have been removed.const myMap: Map<string, string> = new Map([
['one', 'one'],
['two', 'two'],
['three', 'three'],
['four', 'four']
]);
// Remove key-value pairs where value length is 3
for (const [key, value] of myMap) {
if (value.length === 3) {
myMap.delete(key);
}
}
// Print the contents of the map
console.log(myMap);Map(2) { 'three' => 'three', 'four' => 'four' }In this tutorial, we learned How to Remove Key-Value Pairs from a Map Based on Values in TypeScript language with well detailed examples.