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

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

export function isNumber(value) {
    return typeof value === 'number' && Number.isFinite(value);
}
export function isString(value) {
    return typeof value === 'string';
}
export function isInteger(value) {
    return isNumber(value) && Number.isInteger(value);
}
export function isPositiveInteger(value) {
    return isInteger(value) && value > 0;
}
export function isBoolean(value) {
    return typeof value === 'boolean';
}
export function isNull(value) {
    return value === null;
}
export function isUndefined(value) {
    return value === undefined;
}
export function isSymbol(value) {
    return typeof value === 'symbol';
}
export function isBigInt(value) {
    return typeof value === 'bigint';
}
export function isPrimitive(value) {
    return (value === null ||
        ['string', 'number', 'boolean', 'symbol', 'bigint', 'undefined'].includes(typeof value));
}
export function isNormalPrimitive(value) {
    return value == null || ['string', 'number', 'boolean', 'undefined'].includes(typeof value);
}
export function isNonEmptyString(value) {
    return isString(value) && value?.length > 0;
}
export function isFalsy(value) {
    return !value;
}
export function isTruthy(value) {
    return Boolean(value);
}