I am trying to concatenate two strings in TypeScript like this:
let string1 = new String("IdNumber: " + this.IdNumber);
let string2 = new String(this.notes);
this.notes = string1.concat(string2.toString());
The output I see for this.notes on line 3 is missing the original text from this.notes in string2.
This is what I see in devTools for this.notes on line 3 when debugging:
"IdNumber: 524242
"
when hovering over this.notes on line 2 in devTools it looks like this:
"testing
testing 2
testing 3"
I was hoping that this.notes on line 3 would look like this:
"IdNumber: 524242
testing
testing 2
testing 3"
What am I doing wrong?
>Solution :
I think a more ergonomic (if not idiomatic) approach would be using template literals, for example:
const example = {
IdNumber: 524242,
notes: 'testing\n\ntesting 2\n\ntesting 3',
update () {
this.notes = `IdNumber: ${this.IdNumber}\n\n${this.notes}`;
},
};
console.log(example.notes); // "testing\n\ntesting 2\n\ntesting 3"
example.update();
console.log(example.notes); // "IdNumber: 524242\n\ntesting\n\ntesting 2\n\ntesting 3"