Highlight or color the section of code in textarea

1

Hi, I want to color the section of code in textarea, let say line number 10 to line number 15.
I tried : editor.addLineClass(10, ‘background’, ‘styled-background’) , but it only highlight line no.10.
Also I tried: editor.markText({line: 10, ch: 0}, {line: 16, ch: 0}, {className: “styled-background”}); but it highlight only text, not highlighting the whole line.

Please suggest me some relevant method to highlight between the section of lines.

2

Call addLineClass five times, for the lines you want to highlight.