Why is my showMap() function not executing when the button is clicked? How can I resolve this issue in JavaScript?

Question

Why is my showMap() function not executing when the button is clicked? How can I resolve this issue in JavaScript?

Why isn't the JavaScript code for showMap() running? How can this issue be resolved?

<html>
        <title></title>  
        <script>
        function showMap()
        {       
            alert("rong");
        }
        function thaydoi()
        {
            document.getElementById("txtHint").value =" anh yeu em";
        }
       </script>
    </head>
    <body style="height: 437px; width: 663px"  onload="chance()">
    <input type="text" id="txtHint" value="" onchange="showMap()" >
    <input type="button" onclick="thaydoi()">
    </body>
    </html>

javascript

Answer 1

Answer №1

To execute the function showMap(), you must follow these steps:

<input type="text" id="txtHint" onchange="showMap()" >
<script>
function showMap()
{
     alert("The showMap function is being called!");
}

</script>

Alternatively, you can use jQuery in a simpler way:

$("#txtHint").keyup( function() {
    var txtHintVal = $("#txtHint").val();
    alert("Call ME >> " . txtHintVal);
});

IMPORTANT: Remember to utilize the "onblur" event, which triggers when a control loses focus - this appears to be the precise requirement for your task.

Answer 2

To execute the function showMap(), you must follow these steps:

<input type="text" id="txtHint" onchange="showMap()" >
<script>
function showMap()
{
     alert("The showMap function is being called!");
}

</script>

Alternatively, you can use jQuery in a simpler way:

$("#txtHint").keyup( function() {
    var txtHintVal = $("#txtHint").val();
    alert("Call ME >> " . txtHintVal);
});

IMPORTANT: Remember to utilize the "onblur" event, which triggers when a control loses focus - this appears to be the precise requirement for your task.

Answer 3

Answer №2

Revise your code as follows:

<html>
        <title></title>  
        <script>
        function displayMap()
        {       
            alert("incorrect");
        }
        function modifyText()
        {
            document.getElementById("txtHint").value ="I love you";
            displayMap();
        }
       </script>
    </head>
    <body style="height: 437px; width: 663px"  onload="change()">
    <input type="text" id="txtHint" value="" >
    <input type="button" onclick="modifyText()">
    </body>
    </html>

Answer 4

Revise your code as follows:

<html>
        <title></title>  
        <script>
        function displayMap()
        {       
            alert("incorrect");
        }
        function modifyText()
        {
            document.getElementById("txtHint").value ="I love you";
            displayMap();
        }
       </script>
    </head>
    <body style="height: 437px; width: 663px"  onload="change()">
    <input type="text" id="txtHint" value="" >
    <input type="button" onclick="modifyText()">
    </body>
    </html>

Answer 5

Answer №3

onchange event is triggered when the input loses focus. If needed, use onkeypress instead. Also, to invoke the showMap() function, include it within thaydoi().

Here is your updated code snippet:

<html>
        <title></title>  
        <script>
        function showMap()
        {       
            alert("rong");
        }
        function thaydoi()
        {
            document.getElementById("txtHint").value =" anh yeu em";
            showMap();
        }
       </script>
    </head>
    <body style="height: 437px; width: 663px"  onload="chance()">
    <input type="text" id="txtHint" value="">
    <input type="button" onclick="thaydoi()">
    </body>
    </html>

Answer 6

onchange event is triggered when the input loses focus. If needed, use onkeypress instead. Also, to invoke the showMap() function, include it within thaydoi().

Here is your updated code snippet:

<html>
        <title></title>  
        <script>
        function showMap()
        {       
            alert("rong");
        }
        function thaydoi()
        {
            document.getElementById("txtHint").value =" anh yeu em";
            showMap();
        }
       </script>
    </head>
    <body style="height: 437px; width: 663px"  onload="chance()">
    <input type="text" id="txtHint" value="">
    <input type="button" onclick="thaydoi()">
    </body>
    </html>

Why is my showMap() function not executing when the button is clicked? How can I resolve this issue in JavaScript?

Answer №1

Answer №2

Answer №3

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