Escaping is the art of transforming a text into a transport format from which it can be extracted again without any modification.
That's something every developer does - to a certain level. For example take the sentence
Matthias says: "I love Javascript".
Now put this sentence in a Java source code:
String s = "Matthias says: "I love Javascript".";
If you don't complain about this, your compiler will. In Java (any many other programming languages) the quotation mark " has a special meaning, it defines a string. So if you have a string containing the quotation mark, you need to escape it:
String s = "Matthias says: \"I love Javascript\".";
If you print out s, the original text is shown:
System.out.print(s); // Matthias says: "I love Javascript".
