How can you utilize return values from functions within an if statement in JavaScript?

I'm facing a scenario with a simple if statement structured like this:

if (gl.Node.moveUp.call(this) && this.parent._currentScene()) {
    // Perform an action
}

Both functions are designed to return boolean values. Does JavaScript evaluate this condition sequentially?

The function gl.Node.moveUp modifies something within the object where it's invoked, and I want this operation to occur even if _currentScene returns false.

For example, in pseudo code if the result of the condition were as follows:

if (true && false) {

}

Would the call to gl.Node.moveUp still be executed and modify the relevant object? Or does JavaScript reverse the changes due to the overall condition being false?

Is it recommended to split this into two separate if conditions like shown below?

if (gl.Node.moveUp.call(this)) {

     if (this.parent._currentScene()) {

     }
}

Answer №1

In the event that the initial function results in false, the subsequent function will be triggered; otherwise, it proceeds to the else block. It is important to note that even if the second parameter evaluates to false, the first function will still run.

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