我正在尝试获取输入的值并将其显示在其下的div中,同时用户正在键入。我想用香草js做。没有j查询。
我的HTML:
<div id="userInputBox">
<input id="inputText" type="text"
placeholder="Enter your question" size = "50" onkeyup="myDisplay()"/>
</div>
<div class="displayQuestion"></div>
MY JS:
var input = document.getElementById('inputText').value;
var showQuestion = document.getElementsByClassName('displayQuestion');
function myDisplay(e){
showQuestion.innerHTML = input;
}
答案 0 :(得分:1)
您可以使用VannilaJS
方式,
推荐:将函数myDisplay()
的名称更改为有意义的内容,例如displayQuestion()
var targetElm = document.getElementsByClassName('displayQuestion');
var inputElm = document.getElementById('inputText');
function myDisplay() {
if(targetElm && targetElm.length > 0){
targetElm[0].innerHTML = inputElm.value;
}
}
&#13;
<div id="userInputBox">
<input id="inputText" type="text"
placeholder="Enter your question" size ="50" onkeyup="myDisplay()"/>
</div>
<div class="displayQuestion"></div>
&#13;
答案 1 :(得分:1)
试试这个:
function myDisplay(e) {
var input = document.getElementById('inputText').value;
var showQuestion = document.getElementById('displayQuestion');
showQuestion.innerHTML = input;
}
<div id="userInputBox">
<input id="inputText" type="text"
placeholder="Enter your question" size = "50" onkeyup="myDisplay(this.value)"/>
</div>
<div id="displayQuestion"></div>