from their code
forEach(callback: (key: K, value: V) => any): void
so this should work:
testCollection.foreach((key:string,value:string)=> {
console.log(key, value);
})
from their code
forEach(callback: (key: K, value: V) => any): void
so this should work:
testCollection.foreach((key:string,value:string)=> {
console.log(key, value);
})