# babel-code-frame > Generate errors that contain a code frame that point to source locations. ## Install ```sh $ npm install babel-code-frame ``` ## Usage ```js import codeFrame from 'babel-code-frame'; const rawLines = `class Foo { constructor() }`; const lineNumber = 2; const colNumber = 16; const result = codeFrame(rawLines, lineNumber, colNumber, { /* options */ }); console.log(result); ``` ```sh 1 | class Foo { > 2 | constructor() | ^ 3 | } ```