How to use external js files

Question

I have the following two javascript functions   1   showCountry     2   showUser     I would like to put them in external   js  files   1   lt a href  javascript showCountry  countryCode    gt countryCode lt  a gt    2   lt form gt    lt select name  users  onChange  showUser this value   gt    lt option value  1  gt Tom lt  option gt    lt option value  2  gt Bob lt  option gt    lt option value  3  gt Joe lt  option gt    lt  select gt   lt  form gt    What is the correct syntax to call these functions

User · Accepted Answer

Code like this     lt html gt       lt head gt             lt script type  text javascript  src  path to script js  gt  lt  script gt             lt  --other script and also external css included over here-- gt       lt  head gt       lt body gt           lt form gt               lt select name  users  onChange  showUser this value   gt                  lt option value  1  gt Tom lt  option gt                  lt option value  2  gt Bob lt  option gt                  lt option value  3  gt Joe lt  option gt               lt  select gt           lt  form gt       lt  body gt       lt  html gt    I hope it will help you     thanks

User · Answer

I hope this helps someone here  I encountered an issue where I needed to use JavaScript to manipulate some dynamically generated elements  After including the code to my external  js file which I had referenced to between the  lt script gt   lt  script gt  tags at the head section and it was working perfectly  nothing worked again from the script Tried using developer tool on FF and it returned null value for the variable holding the new element  I decided to move my script tag to the bottom of the html file just before the  lt  body gt  tag and bingo every part of the script started to respond fine again

User · Answer

In your head element add   lt script type  text javascript  src  myscript js  gt  lt  script gt

User · Answer

This is the way to include an external javascript file to you HTML markup    lt script type  text javascript  src   js external-javascript js  gt  lt  script gt    Where external-javascript js is the external file to be included  Make sure the path and the file name are correct while you including it    lt a href  javascript showCountry  countryCode    gt countryCode lt  a gt    The above mentioned method is correct for anchor tags and will work perfectly  But for other elements you should specify the event explicitly   Example    lt select name  users  onChange  showUser this value   gt    Thanks  XmindZ

User · Answer

Note  - Do not use script tag in external JavaScript file    lt html gt   lt head gt    lt  head gt   lt body gt       lt p id  cn  gt  Click on the button to change the light button lt  p gt       lt button type  button  onclick  changefont    gt Click lt  button gt         lt script src  external js  gt  lt  script gt   lt  body gt      External Java Script file -          function changefont                                  var x   document getElementById  cn                    x style fontSize    25px                              x style color    red

User · Answer

You can simply add your JavaScript in body segment like this    lt body gt    lt script src  myScript js  gt   lt  script gt   lt  body gt    myScript will be the file name for your JavaScript  Just write the code and enjoy

[javascript] How to use external ".js" files

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