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Can javascript get the value of input?

青灯夜游
青灯夜游Original
2021-04-20 15:39:135284browse

Javascript can get the value of the input. Method: first use the "document.getElementById("id value")" statement to obtain the input element object; then use the "input element object.value" statement to obtain the input element Just value.

Can javascript get the value of input?

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

javascript can get the input value

Code example:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>JavaScript中获取input元素value值</title>
    <link rel="stylesheet" href="">
    <script>
        function printInputValue() {
            var inputValue = document.getElementById("demo1").value;
            console.log(inputValue);
            document.getElementById("demo2").innerHTML = inputValue;
        }
    </script>
</head>
<body>
    <input type="text" id="demo1">
    <button onclick="printInputValue()">获取input元素value值</button>
    <p id="demo2"></p>
</body>
</html>

Run result:

Can javascript get the value of input?

Description:

getElementById() method returns a reference to the first object with the specified ID.

The value attribute can set or return the value of the text field.

[Recommended learning: javascript advanced tutorial]

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