In other words, don’t try to use printWidth as if it was ESLint’s max-len – they’re not the same. You need to explicitly tell them what to do, while humans can make their own (implicit) judgements, for example on when to break a line.

Prettier will make both shorter and longer lines, but generally strive to meet the specified printWidth.

It is a way to say to Prettier roughly how long you’d like lines to be. It is not the hard upper allowed line length limit. Prettier’s printWidth option does not work the same way. In practice, the average line length often ends up well below the maximum. Developers often use whitespace to break up long lines for readability. However, when humans write code, they don’t strive to reach the maximum number of columns on every line. In code styleguides, maximum line length rules are often set to 100 or 120. Specify the line length that the printer will wrap on.įor readability we recommend against using more than 80 characters: This way the Prettier CLI, editor integrations and other tooling knows what options you use. If you change any options, it’s recommended to do it via a configuration file. To learn more about Prettier’s stance on options – see the Option Philosophy. Prettier ships with a handful of format options.

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