A more detailed explanation of the specific meaning of void(0) in javascript_javascript skills

void is an operator in JavaScript that specifies to evaluate an expression but does not return a value. The
void operator usage format is as follows:
1. javascript:void (expression)
2. javascript:void expression
expression is a JavaScript standard expression to be evaluated. The parentheses outside the expression are optional, but it is a good practice to write them. (Implementation version Navigator 3.0 )
You can use the void operator to specify a hyperlink. The expression is evaluated but nothing is loaded into the current document.
The following code creates a hyperlink that does nothing when the user clicks on it. When the user clicks the link, void(0) evaluates to 0 but has no effect on JavaScript.

Click here and nothing will happen

The code below creates a hyperlink that when clicked by the user submits the form.