es-x/no-array-prototype-flat
disallow the
Array.prototype.{flat,flatMap}method
- ✅ The following configurations enable this rule: no-new-in-es2019, restrict-to-es3, restrict-to-es5, restrict-to-es2015, restrict-to-es2016, restrict-to-es2017, and restrict-to-es2018
This rule reports ES2019 Array.prototype.{flat,flatMap} methods as errors.
This rule is silent by default because it's hard to know types. You need to configure the aggressive mode or TypeScript in order to enable this rule.
💡 Examples
⛔ Examples of incorrect code for this rule:
🔧 Options
This rule has an option.
yaml
rules:
es-x/no-array-prototype-flat: [error, { aggressive: false }]aggressive: boolean
Configure the aggressive mode for only this rule. This is prior to the settings['es-x'].aggressive setting.
🚀 Version
This rule was introduced in eslint-plugin-es v5.0.0.