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When the script runs, it gets to this line or a line like it and and says “Ok, I see you want to create a variable called email, and you want this variable to equal the 5th value of something called e (our form submission event), but wait a minute, e is undefined! There is nothing there! Error!” In the context of our error message, it says we are trying to read a set of properties called “values” from something that is undefined, likely with a line that looks something like this if you are using the resources on this site: There is a really good explanation at W3 schools on undefined in JS that is worth a look if you want some better examples.
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Something is undefined in JavaScript when it is an object that is expected to hold a reference to a value, but in fact references nothing. In this line we declare and assign a variable we create it, but do not assign it a value Let’s take a look at a simple example using variables: // This line is a variable declaration To understand this, you first need to understand what it means to be undefined in JavaScript.
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What does typeerror: cannot read property “values” from undefined really mean? One of the most frequent questions I get on this blog, so I decided to dedicate a post to helping people troubleshoot this pesky error.įirst, we’ll talk about what this error means, then we’ll look at the two most common scenarios in which you might get this error, and finally, we’ll talk about what we can do to fix it. Typeerror: cannot read property “values” from undefined is one of the most persistent and frequent errors you can get when doing any type of scripting in Google Apps Script.