remove item from stored array in angular 2

Question

I want to remove an item from a stored array in angular 2, with Type Script. I am using a service called Data Service, the DataService Code:

export cl         


        

Answer 1

You can't use delete to remove an item from an array. This is only used to remove a property from an object.

You should use splice to remove an element from an array:

deleteMsg(msg:string) {
    const index: number = this.data.indexOf(msg);
    if (index !== -1) {
        this.data.splice(index, 1);
    }        
}