javascript - Find Id of clicked button -


I wanted to get the ID of the clicked button because I have 4-5 buttons on my form. 

  & lt; Button type = "submit" style = "height: 30px" id = "btn help" name = "btn support" onclick = "ShowHelp (2); return back;" & Gt; Help & lt; / Button & gt; & Lt; Button type = "button" style = "height: 30px" id = "btnclose" name = "btnclose" onclick = "close (); return back;" & Gt; Close & lt; / Button & gt; & Lt; Button type = "button" style = "height: 30px" id = "btn save" name = "btn save" onclick = "save (); return back;" & Gt; Close & lt; / Button & gt; ...............................   
 Any button can be clicked, I just want to get that button's ID.  
  $ (function () {var id = $ (this) .attr ('id'); Alert (id);})  
 with it Also  
  $ ("Input"). Click (function (event) {var urlid = $ (this) .attr ('id') warning (urlid);})   
 but I'm getting undefined as alert is.  
 How can I click the ID button?  
 Please help me   
 
 
 Try  
  
 
 Select All Elements of Button Elements and Type Button   
  $ (": button"). Click (function (event) {var urlid = this.id; alert (urlid);});   
  
   
  
  Problem  
  $ ("Input")  - & gt; Select elements with tag  input  example.  & lt; Input type = "text" / & gt;  but  & lt; Button & gt;  tag

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