How to select the first element in the dropdown using jquery

Question

I want to know how to select the first option in all select tags on my page using jquery   tried this      select option nth 0    attr  selected    selected       But didn t work

User · Answer

Ana alternative Solution for RSolgberg  which fires the  onchange  event if present       target   val     target option first   val       How to make first option of  lt select  gt  selected with jQuery

User · Answer

I m answering because the previous answers have stopped working with the latest version of jQuery   I don t know when it stopped working  but the documentation says that  prop   has been the preferred method to get set properties since jQuery 1 6   This is how I got it to work  with jQuery 3 2 1       select option nth-child 1    prop  selected   true     I am using knockoutjs and the change bindings weren t firing with the above code  so I added  change   to the end   Here s what I needed for my solution      select option nth-child 1    prop  selected   true  change      See  prop   notes in the documentation here  http   api jquery com prop

User · Answer

Try this out        select option first-child   attr  selected    selected      Another option would be this  but it will only work for one drop down list at a time as coded below   var myDDL      myID    myDDL 0  selectedIndex   0    Take a look at this post on how to set based on value  its interesting but won t help you for this specific issue   Change the selected value of a drop-down list with jQuery

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Here is a simple javascript solution which works in most cases   document getElementById  selectId   selectedIndex    0

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DDLID   val      DDLID option first-child   val        For Complete Drop Down List Operations using Jquery

User · Answer

What you want is probably      select option first-child     What this code  attr  selected    selected      is doing is setting the  selected  attribute to  selected   If you want the selected options  regardless of whether it is the first-child  the selector is      select   children   selected

User · Answer

if you want to check the text of selected option regardless if its the 1st child   var a       select id option selected   text    alert a     check if the value is correct  if a     value    -- execute code --

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Your selector is wrong  you were probably looking for     select option nth-child 1      This will work also      select option first-child

User · Answer

var arr select val             select   each function              var name this name              arr select val name     select option first-child   val                 Process the array object          orders status summary div   print arr select val

[javascript] How to select the first element in the dropdown using jquery?

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