Snippets tagged “referenceerror”
2 snippets use this tag.
- How to Check if Function Exists in JavaScriptJavaScript
In this tutorial, you will read and learn information about the two methods of checking whether a function exists in JavaScript or it has not been defined.
- How to Check if the Variable is UndefinedJavaScript
This tutorial provides the method of checking whether the type of the variable is undefined. Read about the differences between undefined and “undefined”.