JavaScript Scratches

Strings - Escape

Escape Characters

Sometimes we need to print a character that has a special meaning in JavaScript, but we just want to use it the normal way - as a literal character.

Some characters that have special meaning are

the double qoute "
the single quote '
the back-tick `
the back-slash \
the dollar sign $

We talked about quoting previously, so you know we can use the back-tick quote ` if you have a string containing both double and single quote characters.

But if we haven't used the back-tick, we have to escape the special character with a back-slash:

Sprint('<br/>This string has an apostrophe right here \', escaped with the back-slash.<br/>');

Escaping a character means to render it without it's intended meaning.

Here is a back-tick:

Sprint('\`</p>');

Sprint('<p>What is 35 \\ 9?</p>');

Yes, that's the wrong character for division, but it does say it correctly 😎.

Other Special String Things

Coders sometimes want to break up a long line of code into separate lines. We can do that.

Three ways are available for that:

break the line after an operator (+ - = /)

let Title = 

"The Title of This Book Is: Something I Forgot To Do Last Night";

use string concatenation (addition) using '+'
```
let Title = "The Title " +

"of This Book Is: " +

"Something I Forgot " +

"To Do Last Night";
```

use template strings (wrapped in back-ticks)

let Title = `The Title 

of This Book Is: 

Something I Forgot 

To Do Last Night`;

Concatenation