Javascript: Why is this object comparison not working?

Question

Why does the object comparison in line 26 return false, even though, line 25 clearly shows element is of type Text? Using === makes no difference.

24        console.log(element)
25        console.log(element.constructor)
26        console.log(element.constructor == Text)

There is no information to go on here. Can you show actual code? You likely need to read this: https://stackoverflow.com/questions/13387742/compare-two-objects-with-equals-and-operator — mplungjan, Dec 21 '17 at 11:41
Works fine for me, with a regular `Text` node. What is `element` precisely? Where exactly do you execute that code — on an environment that has a globally accessible `Text` constructor? Please, [edit] your question and provide a [mcve]. — Sebastian Simon, Dec 21 '17 at 11:43

score 1 · Accepted Answer · answered Dec 21 '17 at 11:54

1

Try using this:

console.log(element.constructor.name === "Text")

answered Dec 21 '17 at 11:54

Jon

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score 1 · Answer 2 · answered Dec 21 '17 at 11:59

1

If you are trying to check the type of the element you can use the instanceof like so:

console.log((element instanceof Text)); // Logs true/false depending on the type of element

If element is a Text object then this will return true

answered Dec 21 '17 at 11:59

Nick Parsons

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For some reason, this didn't work in my code. But _constructor.name_ did. Any idea of scenarios where _instanceof_ may not work out? – Kameswaran Ganesh Dec 21 '17 at 12:26
hm, not too sure what it could be. Do this work?: `console.log((typeof element) == "Text");` – Nick Parsons Dec 21 '17 at 12:40

Javascript: Why is this object comparison not working?

2 Answers2