Template strings are very simple, but they are an extremely useful addition to the JavaScript syntax. They serve three main purposes:
- Writing multiline strings
- String interpolation
- Tagged template strings
Before template strings, it was quite verbose to write multiline strings. You needed to concatenate pieces of strings and append a new-line character yourself to the line endings:
const header = '<header>\n' + ' <h1>' + title + '</h1>\n' + '</header>';
Using template strings, we can simplify this example a lot. We can write multiline strings, and we can also use the string interpolation functionality for our title variable that we used to concatenate earlier:
const header = ` <header> <h1>${title}</h1> </header> ...
