The data type 'number' cannot be directly converted to the data type 'string'. What is the best way to cast a number as a string?

How can I convert a number to a string in a typescript file within Angular 7? I need to send two pieces of data, an ID and a name, to the backend. However, the backend only accepts the name. What steps should I take to correct this issue?

 public saveCode(e): void {
    let name = e.target.value;
    let list = this.codeList.filter(x => x.name === name)[0];


//The line below is causing the error
    this.restaurant.restaurantId = list.restaurantId;


//However, this line works without any issues
    this.restaurant.name = list.name;

I am looking for a solution to change the restaurantId to a string.

jsonangulartypescriptrestglassfish

Answer №1

One could easily utilize the toString() method for this task

this.restaurant.restaurantId = list.restaurantId.toString();

Answer №2

To convert to a string, you can use:

this.restaurant.restaurantId = '' + list.restaurantId;

or 

this.restaurant.restaurantId = `${list.restaurantId}`;

Answer №3

To convert a value to a string, you have a few options:

value.toString()

Alternatively,

String(value)

Or simply concatenate an empty string with the value:

"" + value

Answer №4

You have the option to convert an integer to a string using the String method as shown below:

x = 12;
String(x);

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