What is the outcome when attempting to instantiate a class without the 'new' keyword in ES6?
- It results in a runtime error
- It creates a new instance but without the class's constructor being called
- It has no impact; both 'new' and non-'new' instantiation work the same way
- It leads to a memory leak
If a class is instantiated without the 'new' keyword, it throws a runtime error. The 'new' keyword is crucial for invoking the constructor and properly creating an instance of the class.
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