@librecoder/tools/src/type.js


export function is(v) {
	return !!v;
}

export function not(v) {
	return !v;
}

export function isDef(v) {
	return v !== undefined && v !== null;
}

export function notDef(v) {
	return v === undefined || v === null;
}

export function isTrue(v) {
	return v === true;
}

export function isFalse(v) {
	return v === false;
}

export function isPrimitive(v) {
	return (
		typeof v === 'string' ||
		typeof v === 'number' ||
		typeof v === 'symbol' ||
		typeof v === 'boolean'
	)
}

export function getType(val) {
	return Object.prototype.toString.call(val).slice(8, -1)
}

export function isString(val) {
	return getType(val) === 'String'
}

export function isNumber(val) {
	return getType(val) === 'Number'
}

export function isBoolean(val) {
	return getType(val) === 'Boolean'
}

export function isFunction(val) {
	return getType(val) === 'Function'
}

export function isNull(val) {
	return getType(val) === 'Null'
}

export function isUndefined(val) {
	return getType(val) === 'Undefined'
}
export function isObject(val) {
	return getType(val) === 'Object'
}

export function isArray(val) {
	// return getType(val) === 'Array'
	return Array.isArray(val)
}

export function isRegExp(val) {
	return getType(val) === 'RegExp'
}

export function isDate(val) {
	return getType(val) === 'Date'
}

export function isError(val) {
	return getType(val) === 'Error'
}

export function isSymbol(val) {
	return getType(val) === 'Symbol'
}

export function isSet(val) {
	return getType(val) === 'Set'
}

export function isMap(val) {
	return getType(val) === 'Map'
}

export function isPromise(val) {
	return getType(val) === 'Promise'
	/*return (
		isDef(val) &&
		typeof val.then === 'function' &&
		typeof val.catch === 'function'
	)*/
}