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In our previous two articles, we introduced to you JavaScript Several methods to implement submission forms, as well as methods to verify JavaScript submission forms, and there is a certain submit submission in the submission form , then today we will give you an analysis of the difference between JavaScript submission form and submit submission!
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <script> function test() { document.getElementById("myform").submit(); alert(11); } </script> <form name="myfrom" id="myform" method="get" action="b.php"> <input type="text" name="pwd" value="" /> <input type="submit" name="sub" value="111" /> <input type="button" name="btn" value="btn" onclick="test()" /> </form> </body> </html>
Note: Action cannot be used when submitting the form using get method urlpass value, post can pass like this
The difference between js submission and submit button submission:
1. When js submits the form, it will not bring the value of the submit button (because it has not been clicked). All browsers
2. Enter and press Enter to submit. The w3c browser will bring the value of the submit button. , ie6 will not bring
Solution: Add a hidden domain, use this to judge, no matter which method is used to submit, there will be a value
Submit button is bound to submit event :
That is:
<input type="submit" name="btn" value="btn" onclick="test()" />
will bring the value of submit, and the onsubmit status cannot be detected even if submitted with js
w3c: Submit once
ie6: Submit in two times, first submit js in the form
Solution:
Detect if the button is submit When using onsubmit event detection
If the button is a button, the submit event will be triggered after passing the detection
Be sure not to use js to submit the form, and then use onsubmit to detect it
Simply use js to submit the form, alert, ff blocks the submission of the form, while other browsing
Summary:
According to the detailed introduction in this article, I believe that my friends are familiar with JavaScript What is the difference between submitting a form and submitting? You can decide which one to choose according to your own needs!
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