Javascript calling function from another file

Question

I m just new comer at Javascript so when I read a Javascript document  and there re many complex structures that I cannot follow   Here is the short explanation of Javascript code that I m reading   in my case there are two main files   Helper js and Circle js    In Helper js  there is a method name  using function param1 param2   And below is code for Circle js   Helper using  py Figures   function  ns         ns Circle   function  params               some additional methods and code here            ns Alert   function         for the test purpose            alert  hello                And in file test html  I write some code like this     lt script src  Helper js  gt  lt  script gt   lt script src  circle js  gt  lt  script gt   lt script gt     test   function            py Figures Alert        calling for testing purpose       lt  script gt   lt body onload  test     gt  lt  body gt    When I run on Chrome and view in console  I meet this error        Uncaught TypeError  Object   has no method  Alert    It means I haven t import those class  yet  Please tell me how to calling function from another file  In my case is   calling Alert    Thanks       Edit  I have added some links for the code     Helper js  Circle js

User · Accepted Answer

Why don t you take a look to this answer  Including javascript files inside javascript files  In short you can load the script file with AJAX or put a script tag on the HTML to include it  before the script that uses the functions of the other script   The link I posted is a great answer and has multiple examples and explanations of both methods

User · Answer

Yes you can  Just check my fiddle for clarification  For demo purpose i kept the code in fiddle at same location  You can extract that code as shown in two different Javascript files and load them in html file   https   jsfiddle net mvora mrLmkxmo              PUT THIS CODE IN ONE JS FILE               var secondFileFuntion   function            this name    XYZ              secondFileFuntion prototype getSurname   function         return  ABC               var secondFileObject   new secondFileFuntion                   Till Here                         PUT THIS CODE IN SECOND JS FILE               function firstFileFunction          var name   secondFileObject name        var surname   secondFileObject getSurname         alert name         alert surname               firstFileFunction      If you make an object using the constructor function and trying access the property or method from it in second file  it will give you the access of properties which are present in another file   Just take care of sequence of including these files in index html

[javascript] Javascript : calling function from another file

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