function validate()
{
var username = document.getElementById("username").value;
var password = document.getElementById("password").value;
if ( username==null || username=="" && password==null || password=="");
{
alert("Please enter username and password");
return false;
}
else ( username == "james1" && password == "j1j22j3j" )
{
alert ("Login successfully");
window.location = "http://www.dtrekrun.com/training.html"; // Redirecting to other page.
return false;
}
}
I'm trying to validate the username/password and show an alert. But it is not working for me.
Didn't you see any error in the console?
Remove the semicolon at the end of this line:
if ( username==null || username=="" && password==null || password=="");
Else don't take arguments, else if does ! Replace
else ( username == "james1" && password == "j1j22j3j" )
by
else if ( username == "james1" && password == "j1j22j3j" )
use this
if ( username==null || username=="" && password==null || password=="")
instead of
if ( username==null || username=="" && password==null || password=="");
and
else ( username == "james1" && password == "j1j22j3j" )
by
else if ( username == "james1" && password == "j1j22j3j" )
Hope you got success
Just remove semicolon after if ( username==null || username=="" && password==null || password=="");
Related
The following Javascript is attached to a field form (on change ) it is supposed to ensure that if the user clicks on a button then 'off site' will populate in activity_type. And if not then '95 Modifier' will appear. In addition this form sheet has a field I have checked 'required' yet what is happening is the user is able to enter blanks for activity type. Is there a way within this javascript to then not allow a blank to be entered?
if (getFormElement('activity_type_id').toUpperCase()=='EE641670-8BE3-49FD-8914-030740D9DE72'
&& getFormElement('actual_location').toUpperCase()!='5E74C25C-6363-46BE-B030-16216B364F5A')
{
setFormElement('is_off_site',true);
} else
{
setFormElement('is_off_site',false);
}
{
setFormElement('is_off_site',false);
}
For your requirement custom function might solve your issue. It might cover almost your all primary scenarios. I have tried my best to update an answer with the best possibilities.
Please review it.
function isEmpty(inputValue) {
if(typeof inputValue === 'string' && (inputValue === '0' || inputValue === 'false' || inputValue === '[]' || inputValue === '{}' || inputValue === '')){
return true;
}else if(Array.isArray(inputValue) === true){
return inputValue.length === 0 ? true : false;
}else if(Array.isArray(inputValue) === false && (typeof inputValue === 'object' && inputValue !== null) && typeof inputValue !== 'undefined' && typeof inputValue !== null){
return Object.keys(inputValue).length === 0 ? true : false;
}else if(typeof inputValue === 'undefined'){
return true;
}else if(inputValue === null){
return true;
}else if(typeof inputValue === 'number' && inputValue === 0){
return true;
}else if(inputValue === false){
return true;
}else if(inputValue.length > 0 && inputValue.trim().length === 0){
return true;
}
return false;
}
console.log("isEmpty(' '): ",isEmpty(' '));
console.log("isEmpty(''): ",isEmpty(''));
console.log("isEmpty([]): ",isEmpty([]));
console.log("isEmpty({}): ",isEmpty({}));
console.log("isEmpty(): ",isEmpty());
const nullValue = null;
console.log("isEmpty(null): ",isEmpty(nullValue));
console.log("isEmpty(0): ",isEmpty(0));
console.log("isEmpty(false): ",isEmpty(false));
console.log("isEmpty('0'): ",isEmpty('0'));
console.log("isEmpty('false'): ",isEmpty('false'));
console.log("isEmpty('[]'): ",isEmpty('[]'));
console.log("isEmpty('{}') ",isEmpty('{}'));
console.log("isEmpty(''): ",isEmpty(''));
console.log("isEmpty('0.0'): ",isEmpty(0.0));
I'm working on SSO page, In there there is function that navigated to another domain single page application which uses angularjs. If users decide to go back, Firefox back button, doesn't navigating to that page.
This should get you started... I disable them in my app, but once they're trapped, you can do with the keypresses what you will.
$(document).ready(function(e) {
// Stop enter/backspace doing their browser defaults.
if (typeof window.event != 'undefined') { // IE
document.onkeydown = function() {
var t=event.srcElement.type;
var kc=event.keyCode;
return ((kc != 8 && kc != 13) || ( t == 'text' && kc != 13 ) || (t == 'textarea') || ( t == 'password' ) || ( t == 'search' ) || ( t == 'submit' && kc == 13));
}
} else {
document.onkeypress = function(e) { // FireFox/Others
var kc=e.keyCode;
if ((kc != 8 && kc != 13) || ( t == 'text' && kc != 13 ) || (t == 'textarea') || ( t == 'password' ) || ( t == 'search' ) || ( t == 'submit' && kc == 13)) {
return true;
} else {
alert('Sorry Backspace/Enter is not allowed here'); // Demo code
return false;
}
}
}
});
I somehow am not able to find what is wrong with the following code. It's a javascript code and it never execute if ( gender === 'undefined' || gender === '' ) even if gender is 'undefined' even though else if ( portfolioFile === 'undefined' || portfolioFile === '' ) is working as it should be.
var portfolioFile = $ ( '#user_file' ).val ( );
var gender = $ ( 'input[name=gender_group]:checked', '#sign_up' ).val ( );
alert ( gender );
if ( gender === 'undefined' || gender === '' ){
alert ( 'if' );
return;
}
else if ( portfolioFile === 'undefined' || portfolioFile === '' ){
alert ('else if');
return;
}
else{
alert ('else');
return;
}
You mean typeof gender === 'undefined' etc.
Validation doesn't work correctly. when we fill at any one field of these, it goes to function call
if ((name == "") && (uname == "") && (password1 == "") && (password2 == "") && (imei == "")) {
alert("Enter Necessary Fileld");
} else if (password1 == password2) {
registerDetails(name, uname, password1, managerId, address1, address2, city, state, country, postcode, number, email, imei, simCard);
} else {
alert("Password Doesn't match");
}
I guess, you wanted to use || instead of &&.
|| would mean, that any field must be empty to not validate, while && means what all fields must be empty.
Try this.
if ((name == "") || (uname == "") || (password1 == "") || (password2 == "") || (imei == "")) {
alert("Enter Necessary Fileld");
} else if (password1 == password2) {
registerDetails(name, uname, password1, managerId, address1, address2, city, state, country, postcode, number, email, imei, simCard);
} else {
alert("Password Doesn't match");
}
Change
if ((name == "") && (uname == "") && (password1 == "") && (password2 == "") && (imei == "")) {
alert("Enter Necessary Fileld");
}
to this so that it will be executed if anyone of the fields are null.
if ((name == "") || (uname == "") || (password1 == "") || (password2 == "") || (imei == "")) {
alert("Enter Necessary Fileld");
}
&& stands for conjunction, so only when all conditions are true, conjunction is true. Because your conditions check if elements are empty, in fact, you check if no one of these variables are empty.
Change && into ||, which stands for disjunction.
If someone could point out what I'm doing wrong I'd be eternally grateful! I can't seem to get the right combination of parenthesis - how to I combine multiple conditions in one statement?? Obviously I don't expect anyone to modify the code below, I just want to show what I'm trying to achieve.
If someone can explain the logic to me that'd be great
Thanks
function ChangeButton()
{
if
((document.forms[0].IPR.value == "") && (document.forms[0].FNM1.value == "") && (document.forms[0].FNM1.value == "") && (document.forms[0].SURN.value == "") && (document.forms[0].GEND.value == "") && (document.forms[0].DOB.value == "") && (document.forms[0].CRIM.value == "") && (document.forms[0].ETHC.value == "") && (document.forms[0].DSBC.value == "") && (document.forms[0].MARK1.value == "") && (document.forms[0].NATC.value == "") && (document.forms[0].COBC.value == "") && (document.forms[0].COD.value == "") && (document.forms[0].FIVE.value == "") && (document.forms[0].PERM.value == "") && (document.forms[0].VISF.value == "") && (document.forms[0].USD.value == "") && (document.forms[0].HAD1.value == "") && (document.forms[0].HAD3.value == "") && (document.forms[0].HTEL.value == "") && (document.forms[0].HAEM.value == "") && (document.forms[0].FEES.value == "") && (document.forms[0].REF1TIT.value == "") && (document.forms[0].REF1ORG.value == "") && (document.forms[0].REF1POS.value == "") && (document.forms[0].REF1AL1.value == "") && (document.forms[0].REF1AL3.value == "") && (document.forms[0].REF1AL5.value == "") && (document.forms[0].REF1EMA.value == "") && (document.forms[0].DISC.value == ""))
&&
((document.forms[0].PERM.value == "") && (document.forms[0].FIVE.value == "N"))
&&
((document.forms[0].AGNT.value == "") && (document.forms[0].USD.value == "Y"))
&&
((document.forms[0].CSTRT.value == "") && (document.forms[0].USD.value == "N") && (document.forms[0].CENDD.value == "") && (document.forms[0].CAD1.value == "") && (document.forms[0].CAD3.value == "") && (document.forms[0].CAD4.value == "") && (document.forms[0].CAPC.value == "") && (document.forms[0].CTEL.value == ""))
&&
((document.forms[0].AWDB.value == "") && (document.forms[0].FEES.value == "") && (document.forms[0].FEES.value == "Private Funds Self or Family") && (document.forms[0].AWDS.value == ""))
&&
((document.forms[0].RESEARCH.value == "Y") && (document.forms[0].RESSRT.value == "") && (document.forms[0].RESMOA.value == "") && (document.forms[0].RESAR.value == "") && (document.forms[0].RESDIS.value == ""))
{
document.getElementById('submitbutton').className = 'enabled';
}
else {
document.getElementById('submitbutton').className = 'disabled';
}
}
I see
...&&... document.forms[0].FIVE.value == ""
...&&... document.forms[0].FIVE.value == "N"
This never be true
EDIT
I think you must change approach, try something like this:
function ChangeButton()
{
var frm = document.forms[0];
var neverEmpty = ['field1','field2','field3'];
var mustBe = {field3:'Y', field4:'N'};
var status = 'ok';
for(var i = 0; i<neverEmpty.length; i++) {
if(frm[neverEmpty[i]] == '') {
status = 'ko';
break;
}
}
for(myField in mustBe) {
if(frm[myfield] != mustBe[myField]) {
status = 'ko';
break;
}
}
document.getElementById('submitbutton').className = status=='ok'? 'enabled' : 'disabled';
}
you don't close the brackets
if (document.forms[0].IPR.value == "" && document.forms[0].FNM1.value == "" && ect...)
it's that simple
You need one more set of parentheses around the whole lot i.e. if (a == b) { .. }
As far as I can see, you don't need any parentheses here (except for those that are required by if syntax).
if(document.forms[0].IPR.value == "" && document.forms[0].FNM1.value == "" &&
document.forms[0].PERM.value == "" && document.forms[0].FIVE.value == "N" &&
...
) {
document.getElementById('submitbutton').className = 'enabled';
} else {
document.getElementById('submitbutton').className = 'disabled';
}
Give the input elements that must be non-empty a "class" attribute. Then find all those elements using that instead of writing that insanely ugly code.
You need 1 more paren before and before the first curly brace everything if ( ... ) { ... }
Here is the corrected code.
function ChangeButton()
{
if
((document.forms[0].IPR.value == "") && (document.forms[0].FNM1.value == "") && (document.forms[0].FNM1.value == "") && (document.forms[0].SURN.value == "") && (document.forms[0].GEND.value == "") && (document.forms[0].DOB.value == "") && (document.forms[0].CRIM.value == "") && (document.forms[0].ETHC.value == "") && (document.forms[0].DSBC.value == "") && (document.forms[0].MARK1.value == "") && (document.forms[0].NATC.value == "") && (document.forms[0].COBC.value == "") && (document.forms[0].COD.value == "") && (document.forms[0].FIVE.value == "") && (document.forms[0].PERM.value == "") && (document.forms[0].VISF.value == "") && (document.forms[0].USD.value == "") && (document.forms[0].HAD1.value == "") && (document.forms[0].HAD3.value == "") && (document.forms[0].HTEL.value == "") && (document.forms[0].HAEM.value == "") && (document.forms[0].FEES.value == "") && (document.forms[0].REF1TIT.value == "") && (document.forms[0].REF1ORG.value == "") && (document.forms[0].REF1POS.value == "") && (document.forms[0].REF1AL1.value == "") && (document.forms[0].REF1AL3.value == "") && (document.forms[0].REF1AL5.value == "") && (document.forms[0].REF1EMA.value == "") && (document.forms[0].DISC.value == "")
&&
((document.forms[0].PERM.value == "") && (document.forms[0].FIVE.value == "N"))
&&
((document.forms[0].AGNT.value == "") && (document.forms[0].USD.value == "Y"))
&&
((document.forms[0].CSTRT.value == "") && (document.forms[0].USD.value == "N") && (document.forms[0].CENDD.value == "") && (document.forms[0].CAD1.value == "") && (document.forms[0].CAD3.value == "") && (document.forms[0].CAD4.value == "") && (document.forms[0].CAPC.value == "") && (document.forms[0].CTEL.value == ""))
&&
((document.forms[0].AWDB.value == "") && (document.forms[0].FEES.value == "") && (document.forms[0].FEES.value == "Private Funds Self or Family") && (document.forms[0].AWDS.value == ""))
&&
((document.forms[0].RESEARCH.value == "Y") && (document.forms[0].RESSRT.value == "") && (document.forms[0].RESMOA.value == "") && (document.forms[0].RESAR.value == "") && (document.forms[0].RESDIS.value == "")))
{
document.getElementById('submitbutton').className = 'enabled';
}
else {
document.getElementById('submitbutton').className = 'disabled';
}
}
USE and IDE, it will make ur life simple.. Cheers to Eclipse IDE :)