Script.Enabled does not work in Unity 5+

Hello!
I’ve read all topics about it but somehow I cannot make it work.

How can I disable a script using javascript in Unity 5+?

ScriptName.enabled = false;

GetComponent(“ScriptName”).enabled = false;

GetComponent(ScriptName).enabled = false;

None of the above codes are working for me.
Thanks if you can help.

GetComponent(ScriptName).enabled works fine, no different than other versions. Nothing changed regarding that. You have some other issue.

The documentation is quite self explanatory

You surely do something wrong in your script. Make sure you are referencing the right script.

With these very simple scripts, everything works

// MyScript.js

var otherScript : Rotate;

function Update () {
    if( Input.GetKeyDown( KeyCode.Space ))
        otherScript.enabled = !otherScript.enabled ;

    if( Input.GetKeyDown( KeyCode.A ))
        GetComponent.<Rotate>().enabled = !GetComponent.<Rotate>().enabled ;
}

// Rotate.js

#pragma strict

function Update () {
    transform.Rotate(Vector3.up * Time.deltaTime * 50, Space.World);
}