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PROBAR ESTA REGLA ID: typescript-best-practices/no-explicit-any
Language: TypeScript
Severity: Notice
Category: Best Practices
Description Do not use the any
type, as it is too broad and can lead to unexpected behavior.
Non-Compliant Code Examples const number : any = 1
function generic () : any {}
function generic () : Array < any > {}
function generic () : any [] {}
function generic ( param : Array < any >) : number {}
function generic ( param : any []) : number {}
function generic ( param : Array < any >) : Array < any > {}
function generic () : Array < Array < any > > {}
function generic () : Array < any [] > {}
class Greeter { constructor ( param : Array < any >) {} }
class Greeter { message : any ; }
class Greeter { message : Array < any >; }
class Greeter { message : any []; }
class Greeter { message : Array < Array < any > > ; }
class Greeter { message : Array < any [] >; }
interface Greeter { message : any ; }
interface Greeter { message : Array < any >; }
interface Greeter { message : any []; }
interface Greeter { message : Array < Array < any > > ; }
interface Greeter { message : Array < any [] >; }
type obj = { message : any ; }
type obj = { message : Array < any >; }
type obj = { message : any []; }
type obj = { message : Array < Array < any > > ; }
type obj = { message : Array < any [] >; }
type obj = { message : string | any ; }
type obj = { message : string | Array < any >; }
type obj = { message : string | any []; }
type obj = { message : string | Array < Array < any > > ; }
type obj = { message : string | Array < any [] >; }
type obj = { message : string & any ; }
type obj = { message : string & Array < any >; }
type obj = { message : string & any []; }
type obj = { message : string & Array < Array < any > > ; }
type obj = { message : string & Array < any [] >; }
class Foo < t = any > extends Bar < any > {}
abstract class Foo < t = any > extends Bar < any > {}
abstract class Foo < t = any > implements Bar < any >, Baz < any > {}
new Foo < any >()
Foo < any >()
// https://github.com/typescript-eslint/typescript-eslint/issues/64
function test < T extends Partial < any > > () {}
const test = < T extends Partial < any > > () => {};
function foo ( a : number , ... rest : any []) : void { return ; }
type Any = any ;
function foo5 (... args : any ) {}
const bar5 = function (... args : any ) {}
const baz5 = (... args : any ) => {}
interface Qux5 { (... args : any ) : void ; }
function quux5 ( fn : (... args : any ) => void ) : void {}
function quuz5 () : ((... args : any ) => void ) {}
type Fred5 = (... args : any ) => void ;
type Corge5 = new (... args : any ) => void ;
interface Grault5 { new (... args : any ) : void ; }
interface Garply5 { f (... args : any ) : void ; }
declare function waldo5 (... args : any ) : void ;
Compliant Code Examples const number : number = 1 ;
function greet () : string {}
function greet () : Array < string > {}
function greet () : string [] {}
function greet () : Array < Array < string > > {}
function greet () : Array < string [] > {}
function greet ( param : Array < string >) : Array < string > {}
class Greeter { message : string ; }
class Greeter { message : Array < string >; }
class Greeter { message : string []; }
class Greeter { message : Array < Array < string > > ; }
class Greeter { message : Array < string [] >; }
interface Greeter { message : string ; }
interface Greeter { message : Array < string >; }
interface Greeter { message : string []; }
interface Greeter { message : Array < Array < string > > ; }
interface Greeter { message : Array < string [] >; }
type obj = { message : string ; };
type obj = { message : Array < string >; };
type obj = { message : string []; };
type obj = { message : Array < Array < string > > ; };
type obj = { message : Array < string [] >; };
type obj = { message : string | number };
type obj = { message : string | Array < string >; };
type obj = { message : string | string []; };
type obj = { message : string | Array < Array < string > > ; };
type obj = { message : string & number ; };
type obj = { message : string & Array < string >; };
type obj = { message : string & string []; };
type obj = { message : string & Array < Array < string > > ; };
// rest params enforces due to no options
// https://github.com/eslint/typescript-eslint-parser/issues/397
// function foo(a: number, ...rest: any[]): void { return; }
// function foo1(...args: any[]) {}
// const bar1 = function (...args: any[]) {};
// const baz1 = (...args: any[]) => {};
// function foo2(...args: readonly any[]) {}
// const bar2 = function (...args: readonly any[]) {};
// const baz2 = (...args: readonly any[]) => {};
// function foo3(...args: Array<any>) {}
// const bar3 = function (...args: Array<any>) {};
// const baz3 = (...args: Array<any>) => {};
// function foo4(...args: ReadonlyArray<any>) {}
// const bar4 = function (...args: ReadonlyArray<any>) {};
// const baz4 = (...args: ReadonlyArray<any>) => {};
// interface Qux1 { (...args: any[]): void; }
// interface Qux2 { (...args: readonly any[]): void; }
// interface Qux3 { (...args: Array<any>): void; }
// interface Qux4 { (...args: ReadonlyArray<any>): void; }
// function quux1(fn: (...args: any[]) => void): void {}
// function quux2(fn: (...args: readonly any[]) => void): void {}
// function quux3(fn: (...args: Array<any>) => void): void {}
// function quux4(fn: (...args: ReadonlyArray<any>) => void): void {}
// function quuz1(): (...args: any[]) => void {}
// function quuz2(): (...args: readonly any[]) => void {}
// function quuz3(): (...args: Array<any>) => void {}
// function quuz4(): (...args: ReadonlyArray<any>) => void {}
// type Fred1 = (...args: any[]) => void;
// type Fred2 = (...args: readonly any[]) => void;
// type Fred3 = (...args: Array<any>) => void;
// type Fred4 = (...args: ReadonlyArray<any>) => void;
// type Corge1 = new (...args: any[]) => void;
// type Corge2 = new (...args: readonly any[]) => void;
// type Corge3 = new (...args: Array<any>) => void;
// type Corge4 = new (...args: ReadonlyArray<any>) => void;
// interface Grault1 { new (...args: any[]): void; }
// interface Grault2 { new (...args: readonly any[]): void; }
// interface Grault3 { new (...args: Array<any>): void; }
// interface Grault4 { new (...args: ReadonlyArray<any>): void; }
// interface Garply1 { f(...args: any[]): void; }
// interface Garply2 { f(...args: readonly any[]): void; }
// interface Garply3 { f(...args: Array<any>): void; }
// interface Garply4 { f(...args: ReadonlyArray<any>): void; }
// declare function waldo1(...args: any[]): void;
// declare function waldo2(...args: readonly any[]): void;
// declare function waldo3(...args: Array<any>): void;
// declare function waldo4(...args: ReadonlyArray<any>): void;
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