The length of the Array is not defined

I'm currently working on the following code snippet:

var transitionsSettingsClass = document.getElementsByClassName("transitionsSettings");   
var myLenght = transitionsSettingsClass.lenght;   
alert(myLenght);

For some reason, I'm receiving an undefined alert. However, if I modify it to:

alert(transitionsSettingsClass[0])

then the result is clear. My goal is to use this script to set an attribute in every element with the classname transitionsSettings, and I need the length of the array for a loop (for) iteration.

javascriptarrays

Answer №1

The measurement is equal to the extent!

That's the explanation!

Answer №2

document.querySelector retrieves a single element from the DOM based on a CSS selector.

It returns the first matching element as an object, not an array.

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