Assume all properties/methods that begin with an underscore are private and generate errors for unused or undeclared properties.
npm install eslint-plugin-private-propsAssume all properties/methods that begin with an underscore and the handle prefix (specific case for React components) are private and generate errors for unused or undeclared properties.
You'll first need to install ESLint:
``
$ npm i eslint --save-dev
Next, install eslint-plugin-private-props:
`
$ npm install eslint-plugin-private-props --save-dev
Note: If you installed ESLint globally (using the -g flag) then you must also install eslint-plugin-private-props globally.
Add private-props to the plugins section of your .eslintrc configuration file. You can omit the eslint-plugin- prefix:
`json`
{
"plugins": [
"private-props"
]
}
Then configure the rules you want to use under the rules section.
`json`
{
"rules": {
"private-props/no-unused-or-undeclared": 2
}
}
#### Options
privateMatchers Change the default set of matchers for private properties
Default:
``json
{
"rules": {
"private-props/no-unused-or-undeclared": [2, {
"privateMatchers": [
"^_",
"^handle[A-Z]"
]
}]
}
}