How to call two methods on button s onclick method in HTML or JavaScript

Question

User · Answer

lt input type  button  onclick  functionA   functionB       gt   function functionA         function functionB

User · Answer

Hi   You can also do as like below    In this way  your both functions should call and if both functions return true then it will return true else return false    lt input type  button        onclick  var valFunc1   func1    var valFunc2   func2    if valFunc1    true  amp  amp  valFunc2   true   return true   else return false          value  Call2Functions    gt    Thank you  Vishal Patel

User · Answer

Try this    lt input type  button  onclick  function1   function2     value  Call2Functions    gt   Or  call second function at the end of first function      function func1           --- some logic      func2             function func2          --- some logic           and call func1   onclick of button    lt input type  button  onclick  func1     value  Call2Functions    gt

User · Answer

The modern event handling method  element addEventListener  click   startDragDrop  false   element addEventListener  click   spyOnUser  false    The first argument is the event  the second is the function and the third specifies whether to allow event bubbling  From QuirksMode   W3C   s DOM Level 2 Event specification pays careful attention to the problems of the traditional model  It offers a simple way to register as many event handlers as you like for the same event on one element  The key to the W3C event registration model is the method addEventListener    You give it three arguments  the event type  the function to be executed and a boolean  true or false  that I   ll explain later on  To register our well known doSomething   function to the onclick of an element you do   Full details here  http   www quirksmode org js events advanced html Using jQuery if you re using jQuery  there is a nice API for event handling      myElement   bind  click   function     doStuff            myElement   bind  click   function     doMoreStuff            myElement   bind  click   doEvenMoreStuff    Full details here  http   api jquery com category events

User · Answer

As stated by Harry Joy  you can do it on the onclick attr like so    lt input type  button  onclick  func1   func2     value  Call2Functions    gt    Or  in your JS like so   document getElementById   Call2Functions    onclick   function         func1        func2         Or  if you are assigning an onclick programmatically  and aren t sure if a previous onclick existed  and don t want to overwrite it    var Call2FunctionsEle   document getElementById   Call2Functions         func1   Call2FunctionsEle onclick   Call2FunctionsEle onclick   function         if  typeof func1      function                  func1              func2         If you need the functions run in scope of the element which was clicked  a simple use of apply could be made   document getElementById   Call2Functions    onclick   function         func1 apply  this  arguments        func2 apply  this  arguments

[javascript] How to call two methods on button's onclick method in HTML or JavaScript?

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