What is the functionality of the keydown event?

Question

What is the functionality of the keydown event?

Whenever the input text value is not empty, I want my .removetext div to be displayed, but it's not working correctly. When I type something after the second character, my .removetext gets hidden, but it shouldn't be hidden when the input is not empty.

Where did I go wrong? I think I am misunderstanding the keydown event.

$(document).ready(function() {
      $('.search-hotels').on('input', function() {
        var val = $.trim(this.value);
        if (!val == "") {
          $(".removetext").show(val.length > 0, function() {
            var clear = $(this);
            clear.on('click', function() {
              alert('hey');
            })
          });
        } else {
          $(".removetext").hide();
        }
      });

    });

.main {
      position: relative;
      width: 40%;
    }

    .search-hotels {
      width: 100%;
      padding: 15px;
      border: 3px solid #ccc;
    }

    .removetext {
      position: absolute;
      right: 0;
      top: 25%;
      font-size: 23px;
      display: none;
    }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
    <div class="main">
      <input type="text" class="search-hotels">
      <div class="removetext">×</div>
    </div>

javascript jquery html css

Answer 1

Answer №1

For an easy input experience, try using the paste feature:

$(function() {
  $('.search-hotels').on('input', function() {
    var val = $.trim(this.value);
    $(".removetext").toggle(val.length>0); // check for non-blank input
  });
  // make sure to place the event handler HERE and not inside the input handler
  $(".removetext").on('click', function() {
      alert('hey');
  });
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels" value="">
  <div class="removetext">&times;</div>
</div>

If you require a callback function, ensure to use show and hide respectively:

$(function() {
  $('.search-hotels').on('input', function() {
    var show = $.trim(this.value).length>0;
    if (show) {
      $(".removetext").show("slow",function() {
        console.log("showing");
      });
    }
    else {
      $(".removetext").hide("slow",function() {
        console.log("hiding");
      });
    }
        
  });
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels" value="">
  <div class="removetext">&times;</div>
</div>

Answer 2

For an easy input experience, try using the paste feature:

$(function() {
  $('.search-hotels').on('input', function() {
    var val = $.trim(this.value);
    $(".removetext").toggle(val.length>0); // check for non-blank input
  });
  // make sure to place the event handler HERE and not inside the input handler
  $(".removetext").on('click', function() {
      alert('hey');
  });
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels" value="">
  <div class="removetext">&times;</div>
</div>

If you require a callback function, ensure to use show and hide respectively:

$(function() {
  $('.search-hotels').on('input', function() {
    var show = $.trim(this.value).length>0;
    if (show) {
      $(".removetext").show("slow",function() {
        console.log("showing");
      });
    }
    else {
      $(".removetext").hide("slow",function() {
        console.log("hiding");
      });
    }
        
  });
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels" value="">
  <div class="removetext">&times;</div>
</div>

Answer 3

Answer №2

To achieve your desired outcome, consider using the keyup event instead of keydown, and modify your if statement to:

if ($(this).val());

The reason for this change is that using keydown will not capture the updated value with .val as it triggers before the input is fully processed. On the other hand, keyup occurs after the user has entered data, making it more suitable for capturing accurate values.

A more effective approach would be utilizing the input event:

$(document).ready(function() {
  $('.search-hotels').on('input', function() {
    if ($(this).val()) {
      $(".removetext").show(function() {
        console.log($(this).attr('class'));
      });
    } else {
      $(".removetext").hide();
    }
  })
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels">
  <div class="removetext">&times;</div>
</div>

Answer 4

To achieve your desired outcome, consider using the keyup event instead of keydown, and modify your if statement to:

if ($(this).val());

The reason for this change is that using keydown will not capture the updated value with .val as it triggers before the input is fully processed. On the other hand, keyup occurs after the user has entered data, making it more suitable for capturing accurate values.

A more effective approach would be utilizing the input event:

$(document).ready(function() {
  $('.search-hotels').on('input', function() {
    if ($(this).val()) {
      $(".removetext").show(function() {
        console.log($(this).attr('class'));
      });
    } else {
      $(".removetext").hide();
    }
  })
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels">
  <div class="removetext">&times;</div>
</div>

Answer 5

Answer №3

It is important to note that the keydown event is triggered before a character is actually typed, so for accurate results it is recommended to use the keyup event which occurs after the character has been typed.

Furthermore, there is a distinction between !$(this).val() and $(this).val()==""

Instead, consider using if($(this).val()=="")

Answer 6

It is important to note that the keydown event is triggered before a character is actually typed, so for accurate results it is recommended to use the keyup event which occurs after the character has been typed.

Furthermore, there is a distinction between !$(this).val() and $(this).val()==""

Instead, consider using if($(this).val()=="")

Answer 7

Answer №4

To capture user input in real-time, it is recommended to utilize the keyup event over key down. While key down registers the pressed key, the input field may not be updated yet. You can extract the value from keydown using the "key" property, but for getting the complete text entered in the input field, it's best to use the keyup event.

Answer 8

To capture user input in real-time, it is recommended to utilize the keyup event over key down. While key down registers the pressed key, the input field may not be updated yet. You can extract the value from keydown using the "key" property, but for getting the complete text entered in the input field, it's best to use the keyup event.

Answer 9

Answer №5

You should consider utilizing the keyup event listener in this scenario and it would be beneficial to also check for the length of $(this).val().

$(document).ready(function() {
  $('.search-hotels').on('keyup', function() {
    if ($(this).val().length > 0) {
      $(".removetext").show(function() {
        console.log($(this).attr('class'));
      });
    } else {
      $(".removetext").hide();
    }
  })
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels">
  <div class="removetext">&times;</div>
</div>

Answer 10

You should consider utilizing the keyup event listener in this scenario and it would be beneficial to also check for the length of $(this).val().

$(document).ready(function() {
  $('.search-hotels').on('keyup', function() {
    if ($(this).val().length > 0) {
      $(".removetext").show(function() {
        console.log($(this).attr('class'));
      });
    } else {
      $(".removetext").hide();
    }
  })
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels">
  <div class="removetext">&times;</div>
</div>

Answer 11

Answer №6

Make sure to check for $(this).val() instead of checking if it's empty. Additionally, consider using the keyup event instead of keydown as it captures the value after it has been entered.

$(document).ready(function() {
  $('.search-hotels').on('keyup', function() {
    if ($(this).val()) {
      $(".removetext").show(function() {
        console.log($(this).attr('class'));
      });
    } else {
      $(".removetext").hide();
    }
  })
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels">
  <div class="removetext">&times;</div>
</div>

Answer 12

Make sure to check for $(this).val() instead of checking if it's empty. Additionally, consider using the keyup event instead of keydown as it captures the value after it has been entered.

$(document).ready(function() {
  $('.search-hotels').on('keyup', function() {
    if ($(this).val()) {
      $(".removetext").show(function() {
        console.log($(this).attr('class'));
      });
    } else {
      $(".removetext").hide();
    }
  })
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels">
  <div class="removetext">&times;</div>
</div>

Answer 13

Answer №7

When the button is pressed, the keydown event fires and the value is not yet updated. To ensure that the input value is updated, use the keyup event which triggers when the button is released...

$(document).ready(function() {
  $('.search-hotels').on('keyup', function() {
    console.log(this,$(this).val());
    if ($(this).val()) {
      $(".removetext").show(function() {
        console.log($(this).attr('class'));
      });
    } else {
      $(".removetext").hide();
    }
  })
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels">
  <div class="removetext">&times;</div>
</div>

Answer 14

When the button is pressed, the keydown event fires and the value is not yet updated. To ensure that the input value is updated, use the keyup event which triggers when the button is released...

$(document).ready(function() {
  $('.search-hotels').on('keyup', function() {
    console.log(this,$(this).val());
    if ($(this).val()) {
      $(".removetext").show(function() {
        console.log($(this).attr('class'));
      });
    } else {
      $(".removetext").hide();
    }
  })
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
  <input type="text" class="search-hotels">
  <div class="removetext">&times;</div>
</div>

Answer 15

Answer №8

Avoid using the keydown event because it lags one keypress behind what is actually typed into the input field's value.

Instead, consider using the oninput event handler (not just keyup as commonly suggested, but as mentioned by @mplungjan). Using oninput allows for accurate tracking of copy/paste events compared to onkeyup.

When reading the input value, use this.value and remember to trim it to remove any unnecessary whitespaces.

$(document).ready(function() {
  $('.search-hotels').on('input', function() {
    if (this.value.trim()) {
      $(".removetext").show();
    } else {
      $(".removetext").hide();
    }
  })
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="main">
  <input type="text" class="search-hotels">
  <div class="removetext">&times;</div>
</div>

Answer 16

Avoid using the keydown event because it lags one keypress behind what is actually typed into the input field's value.

Instead, consider using the oninput event handler (not just keyup as commonly suggested, but as mentioned by @mplungjan). Using oninput allows for accurate tracking of copy/paste events compared to onkeyup.

When reading the input value, use this.value and remember to trim it to remove any unnecessary whitespaces.

$(document).ready(function() {
  $('.search-hotels').on('input', function() {
    if (this.value.trim()) {
      $(".removetext").show();
    } else {
      $(".removetext").hide();
    }
  })
});

.main {
  position: relative;
  width: 40%;
}

.search-hotels {
  width: 100%;
  padding: 15px;
  border: 3px solid #ccc;
}

.removetext {
  position: absolute;
  right: 0;
  top: 25%;
  font-size: 23px;
  display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="main">
  <input type="text" class="search-hotels">
  <div class="removetext">&times;</div>
</div>

What is the functionality of the keydown event?

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Answer №6

Answer №7

Answer №8

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