More detailed explanations of void (0) in javascript _ javascript skills

For more details about the specific meaning of void (0) in javascript, void is an operator in JavaScript, which specifies to calculate an expression but does not return a value.
The format of the void operator is as follows:
1. javascript: void (expression)
2. javascript: void expression
Expression is a standard JavaScript expression to be calculated. Parentheses outside the expression are optional, but it is a good habit to write. (Implement version Navigator 3.0)
You can use the void operator to specify a hyperlink. The expression is calculated, but no content is loaded in the current document.
The following code creates a hyperlink. Nothing happens after you click it. When a user clicks a link, void (0) is calculated as 0, but it has no effect on JavaScript.

Click here and nothing will happen

The following code creates a hyperlink. When you click it, the form is submitted.