我已经用 JavaScript 创建了一个表。它基于用户输入，并会检查以确保输入的值是数字。但我还如何进行检查以确保输入的值是 高于 0 少于 10
<html>
<head>
<title>Homework 1</title>
<script language="javascript" type="text/javascript">
function doWork(){
var rows = document.getElementById("input1").value;
var columns = document.getElementById("input2").value;
//alert(rows);
//alert(columns);
if(isNaN(rows) == true || isNaN(columns) == true){
document.getElementById('tablePlacement').innerHTML = "Input must be integer";
}
else{
var htmlInput = "";
htmlInput += "<table border='1'>";
htmlInput += "<tr>";
//Column Headers
for (i = 0; i <= columns; i++){
htmlInput += ("<td><b>" + i + "</b></td>");
}
htmlInput += "</tr>";
for (i = 1; i <= rows; i++){
htmlInput += ("</br><tr><td><b>" + i + "</b></td>");
for (j = 1; j<= columns; j++){
var multiplyResult = i * j;
htmlInput += ("<td>" + multiplyResult + "</td>");
}
htmlInput += "</tr>";
}
htmlInput += "</table>";
document.getElementById('tablePlacement').innerHTML = htmlInput;
}
};
</script>
</head>
<body>
<form id="input1Form">
Rows: <input type="text" id="input1">
</form>
<form id="input2Form">
Columns: <input type="text" id="input2">
</form>
<button type="button" onclick="doWork()">Enter</button>
<div id="tablePlacement">
</div>
</body>
最佳答案
if(rows <=0 || rows >= 10){
document.getElementById('tablePlacement').innerHTML = "Input rows must be between 1 and 9";
}
if(cols <=0 || cols >= 10){
document.getElementById('tablePlacement').innerHTML = "Input cols must be between 1 and 9";
}
关于javascript - 编写javascript来动态创建表。需要帮助验证用户输入，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14866174/