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[prefer-template] Add "allow-single-concat" option

See original GitHub issue

What rule do you want to change? prefer-template

Does this change cause the rule to produce more or fewer warnings? fewer

How will the change be implemented? (New option, new default behavior, etc.)? New option “allow-single-concat”

Please provide some example code that this change will affect:

const str = someVal + "";            // valid (with enabled option)
const str = "Val: " + someVal + "";  // invalid

What does the rule currently do for this code? Error

What will the rule do after it’s changed? No error for “single” concat

Background info I’m coming from TSLint, which offers this option. See https://palantir.github.io/tslint/rules/prefer-template/.

Are you willing to submit a pull request to implement this change? Yes

Issue Analytics

State:
Created 4 years ago
Reactions:1
Comments:17 (10 by maintainers)

Top GitHub Comments

3reactions

kaicataldocommented, Dec 14, 2019

In this case, it doesn’t look like there was enough interest from the team. If someone would like to advocate for a change related to this, please feel free to create a new proposal!

3reactions

ulrichbcommented, Nov 7, 2019

What do you think about a "allowStringConversions" option (which suppresses errors in the form of x + "" and "" + x, see https://github.com/eslint/eslint/issues/12042#issuecomment-517039518)?

If you like it I could try to prepare a PR.

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