polygonjs-engine/src/core/Type.ts

node-based webgl 3D engine https://polygonjs.com

import {Vector2} from 'three/src/math/Vector2';
import {Vector3} from 'three/src/math/Vector3';
import {Vector4} from 'three/src/math/Vector4';

export class CoreType {
	static isNumber(value: any): value is number {
		return typeof value == 'number';
	}
	static isVector(value: any): value is Vector2 | Vector3 | Vector4 {
		return value instanceof Vector2 || value instanceof Vector3 || value instanceof Vector4;
	}
	static isString(value: any): value is string {
		return typeof value == 'string';
	}
	static isBoolean(value: any): value is boolean {
		return value === true || value === false;
	}
	static isNaN(value: any): boolean {
		return isNaN(value);
	}
	static isArray(value: any): value is any[] {
		return Array.isArray(value);
	}
}