Trigger an event on `click` and `enter`

问题:

I have a searchbox on my site that. Currently, users must click the submit button next to the box to search via jquery's post. I would like to let users also press enter to search. How can i do this?

JQUERY:

$('document').ready(function(){
    $('#searchButton').click(function(){
        var search = $('#usersSearch').val();
        $.post('../searchusers.php',{search: search},function(response){
            $('#userSearchResultsTable').html(response);
        });
    });
});

HTML:

<input type='text' id='usersSearch'  /><input type='button' id='searchButton' value='search' />

回答1:

Use keypress event on usersSearch textbox and look for Enter button. If enter button is pressed then trigger the search button click event which will do the rest of work. Try this.

$('document').ready(function(){
    $('#searchButton').click(function(){
        var search = $('#usersSearch').val();
        $.post('../searchusers.php',{search: search},function(response){
            $('#userSearchResultsTable').html(response);
        });
    })
    $('#usersSearch').keypress(function(e){
        if(e.which == 13){//Enter key pressed
            $('#searchButton').click();//Trigger search button click event
        }
    });

});

Demo

回答2:

You call both event listeners using .on() then use a if inside the function:

$(function(){
  $('#searchButton').on('keypress click', function(e){
    var search = $('#usersSearch').val();
    if (e.which === 13 || e.type === 'click') {
      $.post('../searchusers.php', {search: search}, function (response) {
        $('#userSearchResultsTable').html(response);
      });
    }
  });
});

回答3:

Something like this will work

$('#usersSearch').keypress(function(ev){
    if (ev.which === 13)
        $('#searchButton').click();
});

回答4:

$('#form').keydown(function(e){
    if (e.keyCode === 13) { // If Enter key pressed
        $(this).trigger('submit');
    }
});

回答5:

$('#usersSearch').keyup(function() { // handle keyup event on search input field

    var key = e.which || e.keyCode;  // store browser agnostic keycode

    if(key == 13) 
        $(this).closest('form').submit(); // submit parent form
}

回答6:

you can use below event of keypress on document load.

 $(document).keypress(function(e) {
            if(e.which == 13) {
               yourfunction();
            }
        });

Thanks

回答7:

Take a look at the keypress function.

I believe the enter key is 13 so you would want something like:

$('#searchButton').keypress(function(e){
    if(e.which == 13){  //Enter is key 13
        //Do something
    }
});