Analysis of the differences in the use of confirm, alert, and prompt functions in JS_javascript skills

window.alert: There is only one parameter, which displays the information of the warning box;
No return value.

window.confirm: There is only one parameter. Display Information about the prompt box.

Press OK to return true; press Cancel to return false.

window.prompt: Parameters, there are two,

The first parameter displays the information of the prompt input box.
The second parameter is used to display the default value of the input box. <script> <BR>window.alert("确定.") <BR></script>Returns the value entered by the user. <script> <BR>var bln = window.confirm("确定吗?"); <BR>alert(bln) <BR></script><script> <BR>var str = window.prompt("请输入密码","password") <BR>alert(str); <BR></script>