The official documentation should give you an idea on how to fix this. Any reference to an undeclared variable causes a warning, unless the variable is explicitly mentioned in a /*global …*/ comment, or specified in the globals key in the configuration file. The easiest fix would be to add /* global _ */ at … Read more
If ESLint is running in the terminal but not inside VSCode, it is probably because the extension is unable to detect both the local and the global node_modules folders. To verify, press Ctrl+Shift+U in VSCode to open the Output panel after opening a JavaScript file with a known eslint issue. If it shows Failed to … Read more
A possible way is to use // eslint-disable-next-line no-unused-vars e.g. // eslint-disable-next-line no-unused-vars const { a, …rest } = initObject Or by using ignoreRestSiblings The ignoreRestSiblings option is a boolean (default: false). Using a Rest Property it is possible to “omit” properties from an object, but by default the sibling properties are marked as “unused”. … Read more
There is a conflict in the casing C:\Users\Ruben|desktop\reactapp\test…. whereas the nodemodules is looking for C:\Users\Ruben|Desktop\Reactapp\test…. This is a windows specific problem, and previously react would have run the app regardless of this difference. Not anymore it seems. The solution I used was to locate the folder and open with code; that ensures that the path … Read more
How to Get ESLint Working in Visual Studio 2019 and 2017: 2019 v16 & 2017 >= v15.8 I’ve included the previous version instructions at the end, but do yourself a favor and upgrade if you want this feature. From the menu: Tools > Options > Text Editor > Javascript/Typescript > Linting Check Enable Eslint The … Read more
The block statement isn’t needed for a single expression. this.state.todos.filter(filterTodo => filterTodo !== todo);
As @Mathletics suggests, you can disable the rule entirely by adding this to your .eslintrc.json file: “rules”: { “no-param-reassign”: 0 } Or you can disable the rule specifically for param properties: “rules”: { “no-param-reassign”: [2, { “props”: false }] } Alternatively, you can disable the rule for that function: /* eslint-disable no-param-reassign */ function (el) … Read more
How I proceed: install globally eslint : npm install -g eslint install babel-eslint : npm install –save-dev babel-eslint install eslint-plugin-react : npm install –save-dev eslint-plugin-react create .eslintrc file in you root directory. here is my config: { “env”: { “browser”: true, “node”: true, “es6”: true, “jest”: true, “jquery”: true }, “parser”: “babel-eslint”, “parserOptions”: { “ecmaVersion”: … Read more
Destucturing is using structure-like syntax on the left-hand-side of an assignment to assign elements of a structure on the right-hand-side to individual variables. For exampple, let array = [1, 2, 3, 4]; let [first, _, third] = array; destructures the array [1, 2, 3] and assigns individual elements to first and third (_ being a … Read more
ESLint v8 now supports static class properties natively: https://eslint.org/blog/2021/10/eslint-v8.0.0-released parserOptions ecmaVersion should be set to 13, 2022, or “latest” to enable the support. Add this to your .eslint.(cjs | json | js) { parserOptions: { ecmaVersion: 2022, } }