The text "Hello ${name}" does not get substituted with the name parameter right away in the message string

I'm struggling to get the basic TypeScript feature to work properly. Everywhere I look on the Internet, it says that:

var a = "Bob"  
var message = 'Hello ${a}'  

should result in a console.log(message) printing "Hello Bob".

However, when I try to do this:

import { Component } from '@angular/core';
import { environment } from '../environments/environment';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'etude';

  constructor() {
    console.log('Starting environment ' + environment.env_name + ' spark: ' + environment.spark_url + ' backend: ' + environment.backend_url);

    const a = 'Starting environment ${environment.env_name} spark: ${environment.spark_url} backend: ${environment.backend_url}';
    console.log(a);
  }
}

My console is displaying:

Starting environment dev spark: http://localhost:9090 backend: http://localhost:9091 main.js:1:598971
Starting environment ${environment.env_name} spark: ${environment.spark_url} backend: ${environment.backend_url}

No matter what I try - using let a or var a instead of const a.

According to my research online, shouldn't the transformation have happened right away?

Answer №1

In order to incorporate variables in your string, it's important to use string interpolation with backticks `` instead of single quotes ''

Answer №2

Instead of using "", try utilizing ``

var a = "Bob"
var message = `Hello ${a}` 

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