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Accepted
Sagara
Asked: 2020-01-06 08:21:04 +0800 CST 2020-01-06 08:21:04 +0800 CST

how to set the focus on an input and select the content of this

  • 772

This question may be absurd but it does not work codes that I have found in searches

What I have is the following:

$(".nota").focusout(function(){
    var tx = $(this).val();
    if(tx.length == 2){
        alert("El valor ingresado no debe terminar en un punto");
        $(this).focus();
        $(this).select();
    }
});

The alert works fine, but the input does not change

jquery

1 Answers

  1. Best Answer

    Your code really does work, what you should do is change it alertto another way of displaying the message, in addition to the fact that alertit is no longer used, it generates problems with your code because when it is executed, ifit shows the alert, it inputrecovers its focus and selects its content, but by clickclicking on the accept button you would be exiting again input, which would repeat the entire process, generating one alertthat will never close.

    $(".nota").focusout(function(event){
    var tx = $(this);
    if(tx.val().length == 2){
        $("#mensaje").html("El valor ingresado no debe terminar en un punto");
        setTimeout(function() {
          $(tx).focus();
          $(tx).select();
        }, 10)
    }else{
        $("#mensaje").html("");
    }
});
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<input type="text" class="nota">

<div id="mensaje"></div>

    • 2