How to change input field using javascript onclick?
MaryAnn
Is it possible to change input field using javascript onclick?? My code:
<form>
<input type="text" id="demo" value="John">
</form>
<button onclick="myFunction()">Click me!</button>
<script>
function myFunction() {
document.getElementById("demo").value = "Hello World";
}
</script>
it is successful to change the text, but it is failed to change input field value anyidea how to solve it??? Thank you very much
William Wang
To update the value field of the HTML as well, use setAttribute()
<form>
<input type="text" id="demo" value="John">
</form>
<button onclick="myFunction()">Click me!</button>
<script>
function myFunction() {
document.getElementById("demo").setAttribute("value", "Hello World");
}
</script>이 기사는 인터넷에서 수집됩니다. 재 인쇄 할 때 출처를 알려주십시오.
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