I know there are a few threads on this topic, and in fact I got my code from one such thread, but I just can't seem to get it to run. I'm trying to pare two input boxes in an HTML form using javascript.
Here is my JS:
<script>
function checkform(form1)
{
if(form1.password.value != form1.passwordConfirm.value)
{
alert("Passwords must be the same");
form1.password.focus();
return true;
} else {return false;}
}
</script>
Here is the HTML:
<!Doctype html>
<script type="C:/wamp/www/Table/" src="javascript.js"></script>
<form name="form1" action="demo_form.asp">
Username: <input type="text" name="usrname" required oninvalid="this.setCustomValidity('Username cannot be empty.')">
Password: <input type="password" name="password" required oninvalid="this.setCustomValidity('Password cannot be empty')">
Confirm Password: <input type="password" name="passwordConfirm" required oninvalid="this.setCustomValidity('Password cannot be empty')">
<input type="submit" value="Submit" onClick="return checkform(form1);">
</form>
</html>
Any help would be awesome!
Thanks
Mike
I know there are a few threads on this topic, and in fact I got my code from one such thread, but I just can't seem to get it to run. I'm trying to pare two input boxes in an HTML form using javascript.
Here is my JS:
<script>
function checkform(form1)
{
if(form1.password.value != form1.passwordConfirm.value)
{
alert("Passwords must be the same");
form1.password.focus();
return true;
} else {return false;}
}
</script>
Here is the HTML:
<!Doctype html>
<script type="C:/wamp/www/Table/" src="javascript.js"></script>
<form name="form1" action="demo_form.asp">
Username: <input type="text" name="usrname" required oninvalid="this.setCustomValidity('Username cannot be empty.')">
Password: <input type="password" name="password" required oninvalid="this.setCustomValidity('Password cannot be empty')">
Confirm Password: <input type="password" name="passwordConfirm" required oninvalid="this.setCustomValidity('Password cannot be empty')">
<input type="submit" value="Submit" onClick="return checkform(form1);">
</form>
</html>
Any help would be awesome!
Thanks
Mike
Share Improve this question edited Sep 17, 2014 at 20:24 Huangism 16.4k7 gold badges50 silver badges75 bronze badges asked Sep 17, 2014 at 20:22 MikeMike 1,0695 gold badges23 silver badges50 bronze badges 2- 1 Shouldn't you have the return true/false reversed – Huangism Commented Sep 17, 2014 at 20:26
-
Just as a tip: instead of passing
form1to the function usethis.formdo directly hand over the correct dom-element. No need to use a getElementById anymore (for the form itself) – newBee Commented Sep 17, 2014 at 20:28
2 Answers
Reset to default 3You'll need to assign an id to your form, and get that.
Replace:
<form name="form1" action="demo_form.asp">
With:
<form name="form1" action="demo_form.asp" id="myForm">
And and this:
function checkform(form1){
With this:
function checkform(){
var form1 = document.getElementById('myForm')
You also need to switch your return statements, to return false when the PW's don't match.
The resulting JS / HTML:
function checkform(){
var form1 = document.getElementById('myForm');
if(form1.password.value != form1.passwordConfirm.value)
{
alert("Passwords must be the same");
form1.password.focus();
return false;
}
return true;
}
<form name="form1" action="demo_form.asp" id="myForm">
Username: <input type="text" name="usrname" required oninvalid="this.setCustomValidity('Username cannot be empty.')">
Password: <input type="password" name="password" required oninvalid="this.setCustomValidity('Password cannot be empty')">
Confirm Password: <input type="password" name="passwordConfirm" required oninvalid="this.setCustomValidity('Password cannot be empty')">
<input type="submit" value="Submit" onClick="return checkform();">
</form>
Notice how I removed the else around the second return statement. It's not needed.
Take out return from the onclick.
onClick="checkform(form1);"
发布者：admin，转转请注明出处：http://www.yc00.com/questions/1745264800a4619390.html
评论列表（0条）