What is the most effective way to determine if a statement is either false or undefined?

What is the most effective way to determine if a statement is not true or undefined, sometimes without necessarily being a boolean?

I am attempting to improve this code.

var result = 'sometimes the result is undefined';

if (result === false || typeof result === 'undefined' && instantMessage === false || typeof instantMessage === 'undefined'){
// do something
}

Answer №1

if (result !== null && result) {
 //perform an action
}

I concur with the previous assessment that the question lacks clarity. The code snippet provided will only execute if 'result' is a boolean value of 'true'.

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