checked = “checked” vs checked = true

Question

What is the difference between the below two usages?

document.getElementById(\'myRadio\').checked = \"checked\";

and

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Answer 1

document.getElementById('myRadio').checked is a boolean value. It should be true or false

document.getElementById('myRadio').checked = "checked"; casts the string to a boolean, which is true.

document.getElementById('myRadio').checked = true; just assigns true without casting.

Use true as it is marginally more efficient and is more intention revealing to maintainers.