| 1 | /**
|
| 2 | * Safely invoke the member function with no arguments, if the object
|
| 3 | * exists and the given key is indeed a function, and return its value.
|
| 4 | * Otherwise, return `undefined`.
|
| 5 | *
|
| 6 | * @deprecated use TypeScript 3.7+ optional chaining and optional call operator obj?[key]?.()
|
| 7 | */
|
| 8 | export declare function safeInvokeMember<T extends {
|
| 9 | [k in K]?: () => R;
|
| 10 | }, K extends keyof T, R = void>(obj: T | undefined, key: K): R | undefined;
|
| 11 | /**
|
| 12 | * Safely invoke the member function with one argument, if the object
|
| 13 | * exists and the given key is indeed a function, and return its value.
|
| 14 | * Otherwise, return `undefined`.
|
| 15 | *
|
| 16 | * ```js
|
| 17 | * // example usage
|
| 18 | * safeInvokeMember(this.props.inputProps, "onChange", evt);
|
| 19 | * ```
|
| 20 | *
|
| 21 | * @deprecated use TypeScript 3.7+ optional chaining and optional call operator obj?[key]?.()
|
| 22 | */
|
| 23 | export declare function safeInvokeMember<T extends {
|
| 24 | [k in K]?: (a: A) => R;
|
| 25 | }, K extends keyof T, A, R = void>(obj: T | undefined, key: K, arg1: A): R | undefined;
|
| 26 | /**
|
| 27 | * Safely invoke the member function with two arguments, if the object
|
| 28 | * exists and the given key is indeed a function, and return its value.
|
| 29 | * Otherwise, return `undefined`.
|
| 30 | *
|
| 31 | * @deprecated use TypeScript 3.7+ optional chaining and optional call operator obj?[key]?.()
|
| 32 | */
|
| 33 | export declare function safeInvokeMember<T extends {
|
| 34 | [k in K]?: (a: A, b: B) => R;
|
| 35 | }, K extends keyof T, A, B, R = void>(obj: T | undefined, key: K, arg1: A, arg2: B): R | undefined;
|
| 36 | /**
|
| 37 | * Safely invoke the member function with three arguments, if the object
|
| 38 | * exists and the given key is indeed a function, and return its value.
|
| 39 | * Otherwise, return undefined.
|
| 40 | *
|
| 41 | * @deprecated use TypeScript 3.7+ optional chaining and optional call operator obj?[key]?.()
|
| 42 | */
|
| 43 | export declare function safeInvokeMember<T extends {
|
| 44 | [k in K]?: (a: A, b: B, c: C) => R;
|
| 45 | }, K extends keyof T, A, B, C, R = void>(obj: T | undefined, key: K, arg1: A, arg2: B, arg3: C): R | undefined;
|