nhb-toolbox/dist/esm/guards/non-primitives.js

A versatile collection of smart, efficient, and reusable utility functions, classes and types for everyday development needs.

import { isString } from './primitives.js';
export function isArray(value) {
    return Array.isArray(value);
}
export function isValidArray(value) {
    return Array.isArray(value) && value?.length > 0;
}
export function isObject(value) {
    return value !== null && typeof value === 'object' && !isArray(value);
}
export function isNotEmptyObject(value) {
    return isObject(value) && Object.keys(value)?.length > 0;
}
export function isObjectWithKeys(value, keys) {
    return isObject(value) && keys?.every((key) => key in value);
}
export function isEmptyObject(value) {
    return isObject(value) && Object.keys(value)?.length === 0;
}
export function isFunction(value) {
    return typeof value === 'function';
}
export const isMethodDescriptor = (descriptor) => {
    return !!descriptor && typeof descriptor?.value === 'function';
};
export function isDate(value) {
    return value instanceof Date;
}
export function isArrayOfType(value, typeCheck) {
    return isArray(value) && value?.every(typeCheck);
}
export function isPromise(value) {
    return isObject(value) && isFunction(value.then);
}
export function isSet(value) {
    return value instanceof Set;
}
export function isMap(value) {
    return value instanceof Map;
}
export function isRegExp(value) {
    return value instanceof RegExp;
}
export function isError(value) {
    return value instanceof Error;
}
export function isJSON(value) {
    if (!isString(value))
        return false;
    try {
        JSON.parse(value);
        return true;
    }
    catch {
        return false;
    }
}
export function isReturningPromise(fn) {
    return isFunction(fn) && fn.constructor?.name === 'AsyncFunction';
}