voidoperator evaluates the given expression and then returns
voidoperator is often used merely to obtain the
undefinedprimitive value, usually using “
void(0)” (which is equivalent to “
void 0”). In these cases, the global variable
undefinedcan be used instead (assuming it has not been assigned to a non-default value).
An explanation is provided here:
The reason you’d want to do this with the
href of a link is that normally, a
undefined, then the browser stays on the same page.
void(0) is just a short and simple script that evaluates to
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