Answers for "map.contains key"

11

check if map contains key java

if (map.containsKey(key)) {
       // Okay, there's a key but the value is null
    } else {
       // Definitely no such key
    }
Posted by: Guest on March-04-2020
0

js check if map contains key

const map1 = new Map();
map1.set('bar', 'foo');

console.log(map1.has('bar'));
// expected output: true

console.log(map1.has('baz'));
// expected output: false
Posted by: Guest on January-18-2021

Code answers related to "map.contains key"

Code answers related to "Java"

Java Answers by Framework

Browse Popular Code Answers by Language