Sindre Sorhus

Sindre Sorhus/eslint-plugin-unicorn

Rule proposal: prefer-operator-assignment

dimaMachina

3 years ago

3

👍

1

Description

if the new string starts with the previous string, prefer operator assignment as less code is written

Fail

foo = foo + 'baz qux'

foo = `${foo} baz ${qux}`

Pass

foo += 'baz qux'

foo += ` baz ${qux}`

Additional Info

ESLint's operator-assignment doesn't catch case with template literal interpolation https://eslint.org/demo#eyJ0ZXh0IjoibGV0IGZvbyA9IGAke2Zvb30gYmF6ICR7cXV4fWBcbmZvbyA9IGZvbyArICdiYXogcXV4JyIsIm9wdGlvbnMiOnsicGFyc2VyT3B0aW9ucyI6eyJlY21hVmVyc2lvbiI6ImxhdGVzdCIsInNvdXJjZVR5cGUiOiJzY3JpcHQiLCJlY21hRmVhdHVyZXMiOnt9fSwicnVsZXMiOnsiY2FwaXRhbGl6ZWQtY29tbWVudHMiOjIsIm9wZXJhdG9yLWFzc2lnbm1lbnQiOjJ9LCJlbnYiOnt9fX0=

sindresorhus

sindresorhus / eslint-plugin-unicorn

More than 100 powerful ESLint rules

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