In JavaScript, Void is an operator that specifies that you want to evaluate an expression but not return a value.
void operator usage format is as follows:
1. javascript:void (expression)
2. Javascript:void expression
Expression is an expression of the JavaScript standard to compute. The parentheses outside the expression are optional, but writing is a good habit. (
implementation version Navigator 3.0 )
You can use the void operator to specify a hyperlink. The expression is evaluated but does not load any content in the current document.
The following code creates a hyperlink that will not happen when the user clicks on it. When the user clicks on the link, void (0) evaluates to 0, but there is no effect on JavaScript.
<a href= "javascript:void (0)" > Click here Nothing will happen </A>
The following code creates a hyperlink that submits the form when the user clicks it.
<a href= "Javascript:void (Document.form.submit ())" >
