Why isn't JavaScript running when I refernce the external file in between the head tags in my html file? -



Why isn't JavaScript running when I refernce the external file in between the head tags in my html file? -

when set link js file in between html header tags js file not run. if set external js link after body tag or somewhere after mass of html code file runs. there way create external js file run when link external file in between head tags. should mention i'm doing html dom in external js file.

html portion:

<!doctype html> <html> <head> <title>htmldom practice</title> <link rel="stylesheet" type="text/css" href="htmldom practice.css"/> <!--i set external js file here--> </head> <body> <div id="box"> <p id="txt">hello world!</p> </div> </body> <script src="htmldom practice.js"></script> </html>

javascript/html dom portion:

var x = document.getelementbyid('txt'); var b = document.getelementbyid('box'); x.addeventlistener('click',irt,false); b.addeventlistener('click',irt,false); function irt(){ x.innerhtml="goodbye world!"; b.style.padding="20px"; }

i know can annoying place js code @ bottom of page utilize dom. practise load js in head.

you workaround this. 1) place function in js file initialising 2) phone call initialise function onload.

js file looks this

var x; var b; function irt(){ x.innerhtml="goodbye world!"; b.style.padding="20px"; } function seteverything(){ x = document.getelementbyid('txt'); b = document.getelementbyid('box'); x.addeventlistener('click',irt,false); b.addeventlistener('click',irt,false); }

html body tag

<body onload="seteverything()">

javascript html dom

Comments

Post a Comment

Popular posts from this blog

Delphi change the assembly code of a running process -

Delphi change the assembly code of a running process - i'm trying alter address 00741fa5 has push test.009e721c . alter push test.009e71c8 . procedure callback; asm force $9e71c8 end; procedure tform2.btn1click(sender: tobject); var ppid :dword; pprocess : cardinal; begin getwindowthreadprocessid(findwindow(nil,pchar('test')), @ppid); pprocess := openprocess(process_all_access, false, ppid); injectasm(pprocess, $741fa5, 10, integer(@callback), 0); end; here injectasm function (with error checking) function injectasm(process: longword; injectaddress, injectsize, codeaddress, codesize : integer): pointer; var csize, rsize : integer; replaced : array of byte; jmp : array [0..4] of byte; jmpaddress : integer; nopv : byte; : integer; nbr: ulong_ptr; begin //injectsize must equal or greater 5, because need space our //(far) jmp wwxxyyzz instruction //if there's no space, inject in place of few instructions if injectsize ...
Read more

json - Hibernate and Jackson (java.lang.IllegalStateException: Cannot call sendError() after the response has been committed) -

json - Hibernate and Jackson (java.lang.IllegalStateException: Cannot call sendError() after the response has been committed) - hello have problem hibernate , jackson. have 2 pojos @entity @table(name = "users") public class user implements serializable { static final long serialversionuid = 4235637833262722256l; @id @generatedvalue private int id; @column(name = "creation_date") private date creationdate; @column(name = "first_name") private string firstname; @column(name = "last_name") private string lastname; @version @column(name = "version") private int version; @column(name = "e_mail") private string email; @column(name = "enabled") private boolean enabled; @column(name = "login") private string login; @column(name = "password") private string password; @jsonmanagedreference("role") @onetomany(mappedby = "user", cascade = cascadetype.all,fetch = fetchtyp...
Read more

C++ 11 "class" keyword -

C++ 11 "class" keyword - i've started using c++ 11 little bit more , have few questions on special uses of class keyword. know it's used declare class, there's 2 instances have seen don't understand: method<class t>(); and class class_name *var; why precede typename keyword class in first example, , keyword pointer in sec example? that known elaborated type specifier , necessary when class name "shadowed" or "hidden" , need explicit. class t { }; // love of god don't t t; t t2; if compiler smart, give these warnings: main.cpp:15:5: error: must utilize 'class' tag refer type 't' in scope t t2; ^ class main.cpp:14:7: note: class 't' hidden non-type declaration of 't' here t t; ^ if class not defined, deed forwards declaration. for example: template <typename t> void method() { using type = typename t::value_type; } method...
Read more