codetrix/dist/utility/logic.d.ts

A lightweight lodash-style utility library

/**
 * Checks if a value is null or undefined.
 * @param value - The value to check.
 * @returns True if the value is null or undefined.
 */
export declare function isNil(value: any): boolean;
/**
 * Returns one of two values based on a condition.
 * @param condition - Boolean condition to evaluate.
 * @param ifTrue - Value to return if condition is true.
 * @param ifFalse - Value to return if condition is false.
 * @returns The selected value.
 */
export declare function ifElse<T>(condition: boolean, ifTrue: T, ifFalse: T): T;
/**
 * Checks if a value is a function.
 * @param value - The value to check.
 * @returns True if it's a function.
 */
export declare function isFunction(value: any): boolean;
/**
 * Checks if a value is a plain object.
 * @param value - The value to check.
 * @returns True if it's a non-null object and not an array.
 */
export declare function isObject(value: any): boolean;
/**
 * Checks if the given value is a boolean.
 * @param value - The value to check.
 * @returns True if it's a boolean.
 */
export declare function isBoolean(value: any): boolean;
/**
 * Checks if a value is a Promise.
 * @param value - The value to check.
 * @returns True if it's a Promise.
 */
export declare function isPromise(value: any): boolean;
/**
 * Creates a function that is invoked only once.
 * Useful for initialization logic.
 * @param fn - The function to wrap.
 * @returns A new function that runs only once.
 */
export declare function once<T extends (...args: any[]) => any>(fn: T): T;