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Posted on by MituCRMing

274

Hello there first thank you for looking into this. I am trying to define my javascript using namespace and $self.

I am also trying to define my fields using

var $self = FIELD = {
		AccountName: "new_accountname",
		RelationType: "new_relationtype"
	};

When I try to run this code on the form I am getting an error, the error is (

One of the scripts for this record has caused an error. For more details, download the log file.
TypeError: Unable to get property 'onLoad' of undefined or null reference at eval code (eval code:1:1))

//JavaScript source code

if (typeof CONTOSO == "undefined") {
	CONTOSO = {_namespace: true};
}

CONTOSO.Account = (function() {
	var $self = {};
	
	var $self = FIELD = {
		AccountName: "new_accountname",
		RelationType: "new_relationtype"
	};
	$self.onLoad = function () {
		showHide(FIELD.AccountName, FIELD.RelationType);
	}
	
	$self.FIELD.AccountName = function () {
		showHide(FIELD.AccountName);
	}
	
	function showHide() {
		if (){
			
		}
		else if (){
			
		}
	}
})();

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Community Member on at

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how does your form call for onLoad look like?

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MituCRMing 274 on at

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CONTOSO.Account.onLoad

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a33ik 84,331 Most Valuable Professional on at

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Hello,

You should start from basics of JS and not try to do something complex from the start. I reworked your code to make it run without issues (at least it should not throw any errors):

if (typeof CONTOSO == "undefined") { CONTOSO = {_namespace: true}; } CONTOSO.Account = (function() { var FIELD = { AccountName: "new_accountname", RelationType: "new_relationtype" }; function onLoad() { alert(FIELD.AccountName); } return { onLoad: onLoad }; })();

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MituCRMing 274 on at

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Hi Andrii, I was hoping to use $self and I am returning self. I am also planning to call the function onChange. Please kindly see my code below. Thanks

//JavaScript source code

if (typeof CONTOSO == "undefined") {

CONTOSO = {_namespace: true};

}

CONTOSO.Account = (function() {

var $self = {};

var $self = FIELD = {

AccountName: "new_accountname",

RelationType: "new_relationtype"

};

//OnLoad

$self.onLoad = function () {

showHide(FIELD.AccountName, FIELD.RelationType);

}

$self.FIELD.AccountName = function () {

showHide(FIELD.AccountName);

}

$self.FIELD.AccountName = function () {

showHide(FIELD.AccountName);

}

//onChange

$self.FIELD.AccountNameonChange = function () {

showHide(FIELD.AccountName, FIELD.RelationType, "");

}

function showHide() {

if (){

}

else if (){

}

}

return $self;

})();

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a33ik 84,331 Most Valuable Professional on at

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Before I will go through your code one more time can you please answer following questions:

1. What's your experience working with JavaScript?

2. Where did you get that idea using $self?

3. Even if you use $self what's the goal of returning it?

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MituCRMing 274 on at

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I am a beginner on JavaScript, I saw a blog post about $self. The reason I am using it is to have a standard when I use it in the event handler.

So for my onLoad I will use: Contoso. Account. onLoad

for onChange: Contoso.Account.new_accountname.onChange

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a33ik 84,331 Most Valuable Professional on at

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So if you are a beginner I believe it's for good to listen to guys who are bit experienced than you (I work with CRM and JavaScript since 2008). So if you want to listen then I would suggest not to use things you do not understand yet. I will suggest to use easier for understanding code. If you want use namespaces it's good. Here is your code with usage of namespaces:

if (typeof CONTOSO === "undefined") { CONTOSO = {__namespace: true}; } if (typeof CONTOSO.Account === "undefined") { CONTOSO.Account = { __namespace: true }; } CONTOSO.Account.onLoad = function() { //put code of your handler here } if (typeof CONTOSO.Account.new_accountname === "undefined") { CONTOSO.Account.new_accountname = { __namespace: true }; } CONTOSO.Account.new_accountname.onChange = function() { //put code of your handler here }

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