[英]How do I output a variable from Javascript to html?
I want to inject text into a div using a variable. 我想使用变量将文本注入div。 Here's a Stack Snippet of my code: 这是我的代码的堆栈片段:
tDNA() { var dna = prompt("Enter the DNA: "); } document.getElementById("dna").innerHTML = "DNA: " + dna;
<!DOCTYPE html> <html> <head> </head> <body> <src="main.js"> <div id="dna"></div> </body> </html> function promp
您需要像这样导入脚本
<script type="text/javascript" src="main.js"></script>
Like this, you have to add the data to the HTML where the variable dna
is in scope and then actually call the function 这样,您必须将数据添加到变量dna
在作用域中的HTML中,然后实际调用该函数
function promptDNA(){ var dna = prompt("Enter the DNA: "); document.getElementById("dna").textContent = "DNA: " + dna; } promptDNA()
<!DOCTYPE html> <html> <head> </head> <body> <div id="dna"></div> <script src="main.js"></script> </body> </html>
Also, you're importing your script improperly. 另外,您导入的脚本不正确。
You can try this out. 您可以尝试一下。
HTML HTML
<html>
<head>
</head>
<body>
<script defer src = "main.js"></script>
<div id = "dna">
<p></p>
</div>
</body>
</html>
JavaScript JavaScript的
function promptDNA(){
var dna = prompt("Enter the DNA: ");
d1 = document.querySelector("p");
d1.textContent = dna;
}
promptDNA();
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