Version: 2017.4
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Assert.IsFalse

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public static method IsFalse(condition: bool): void;
public static void IsFalse(bool condition);
public static method IsFalse(condition: bool, message: string): void;
public static void IsFalse(bool condition, string message);

Parameters

condition true or false.
messageThe string used to describe the result of the Assert.

Description

Return true when the condition is false. Otherwise return false.

no example available in JavaScript
using UnityEngine;
using UnityEngine.Assertions;

public class AssertionExampleClass : MonoBehaviour { GameObject go;

void Update() { // Make sure the Game Object is never in active state Assert.IsFalse(go.activeSelf); } }