Client Side Template

{if <undefined<var 1,var 2>>}...{endif}

Description

Lets you append strings in the template when variables are undefined.

This command simplifies the following, much more cumbersome, template:

{*if typeof variableName1 == 'undefined' || typeof variableName2 == 'undefined'}
...
{*endif}

For example, take this JSON data.

{
    employees: [
        {firstname: 'Fred', lastname: 'Smith', state: 'MA'},
        {firstname: 'Laura', lastname: 'Linneker', state: 'CA'},
        {firstname: 'Junior', lastname: 'Programmer', state: 'MA'},
        {firstname: 'Bill', lastname: 'Lindsey', state: 'NY'}
    ]
}

Using this template an 'if' command is fired when the 'state' field equals MA. When this happens if the 'nothere' and 'nothereeither' are undefined, because they don't exist in the data, then a 'Theses Variables are undefined' statement is shown.

{employees}
    Employee name:{firstname} 
    <div>
       {*if state=='MA'}
            Employee from MA
            
       {*if <undefined<nothere,nothereeither>>}These Variables are undefined{*endif}
        {*endif}
   </div><br/>
{/employees}

Result:

Employee name:Fred
Employee from MA These Variables are undefined

Employee name:Laura

Employee name:Junior
Employee from MA These Variables are undefined

Employee name:Bill

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{*if <undefined<var 1,var 2>>}...{*endif}

{if <undefined<var 1,var 2>>}...{endif}