what does this \ symbol means in javascript used to inject in webview android

Question

i found a code in internet code is : webview.loadUrl("javascript:document.body.style.color=\"white\";");

My question is : what does \ symbol mean and do in the code

Answer 1

The \ symbol in programming languages is used to escape an char, which would create conflicts in the text.

For Example, if you want to print out My nickname is "Tom", the codeline would be

System.out.println("My nickname is "Tom"");

The compiler see only the part of "My nickname is" and failes then So, the correct solution is

System.out.println("My nickname is \"Tom\");

So the compiler recognizes, that "Tom" is part of the text. This works in nearly all programming languages with the \ If you want to write a \ in your string, you have to escape it to with backslash, so it becomes \ \ .

Hope i helped :)