如何将正文添加到 JavaScript 部分？
[英]How can I add body to JavaScript section?
问题描述
I am a new Javascript learner.
我是一个新的 Javascript 学习者。 This code had grabbed my interest.这段代码引起了我的兴趣。 How can I remove what is inside the sections and add it to the sections.如何删除部分内的内容并将其添加到部分中。 In other words, I want it to be a full Javascript code.换句话说，我希望它是一个完整的 Javascript 代码。 Can anyone please lead or teach me to the right path or give me an example of how the code is going to look like.任何人都可以引导或教我正确的道路，或者给我一个代码看起来如何的例子。 Thanks谢谢
Body:身体：
<body>
<p id="demo"></p>
<p id="demoNew"></p>
</body>
JavaScript: JavaScript：
<script>
var n = parseInt(prompt("How many numbers will be entered(max 20)-"));
var numArray = [];
for (var i = 0; i < n; i++) {
numArray[i]=parseInt(prompt("Enter number between 10 and 100 "));
}
var uniqueNum = [...new Set(numArray)];
document.getElementById("demo").innerHTML = "Count of items entered: "+n;
document.getElementById("demoNew").innerHTML = "Numbers-dduplicates removed: "+uniqueNum;
</script>
1 个解决方案
解决方案1
0 2021-04-28 04:03:04
Your code looks like getting 1~20 inputs between integer 10 and 100 from prompt and make a set with them but you want this without HTML.您的代码看起来像是从提示符中获得 integer 10 和 100 之间的 1~20 个输入并与它们进行设置，但您希望没有 HTML。
var p = document.createElement("p"); p.setAttribute("id", "demo"); document.getElementsByTagName('body')[0].appendChild(p); p = document.createElement("p"); p.setAttribute("id", "demoNew"); document.getElementsByTagName('body')[0].appendChild(p); //create element and append to body as a child var n = -1; while(n<1 || n>20) { n = parseInt(prompt("How many numbers will be entered(between 1 and 20)")); } var numArray = []; var input = 0; for (var i = 0; i < n; i++) { input = parseInt(prompt("Enter #"+(i+1)+" number between 10 and 100 ")); if(input>=10 && input<=100) { numArray.push(input); } else { alert("invalid input"); i--; } } var uniqueNumArray = new Set(numArray); console.log(uniqueNumArray.size); document.getElementById("demo").innerHTML = "Count of items entered: "+n; document.getElementById("demoNew").innerHTML = "Numbers-duplicates removed: "+Array.from(uniqueNumArray);
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