check null

check null

 var anim = this.getComponent(cc.Animation);
        if(anim != null) 
        {
            anim.play();

            var anim = this.getComponent(cc.Animation);
            var animState = anim.play("TigerRun");
    
            // accelerate the playing speed of animation
            animState.speed = 2;
            animState.wrapMode = cc.WrapMode.Loop;
    
            anim.playAdditive("TigerRun");
        }