如何解决我不断遇到的 Javascript 错误？
我解决了这个问题。测试用例不断失败可能是因为需要实现一个 try catch 块。我完全忘记了这一点。当我添加 try catch 块时，测试用例有效。 感谢您的所有建议。 问题陈述：我需要设计一个简单的 html 表单，它将限制作为输入并显示斐波那契数列的第一个给定数字。 例如。如果给出 5 作为输入，则显示：0 1 1 2 3 如果给出 8 作为输入，则显示：0 1 1 2 3 5 8 13 但我不断收到此错误：
testFiboForNonZeroPositiveInput:
Check for the logic and check if the correct output is displayed in div with id 'result'
testFiboForZeroInput:
Check for the logic and check if the correct output is displayed in div with id 'result'
测试用例失败
这是我的代码：
function getFibonacci(){
var fib=document.getElementById("fibo").value;
var text;
var arr=[];
if (fib.length===0){
text="Please, specify a number.";
document.getElementById("result").innerHTML = text;
}
else if (fib<0){
text="Please, specify a positive number.";
document.getElementById("result").innerHTML = text;
}
else{
var n1 = 0, n2 = 1, nextTerm, i;
for (i = 1; i <= fib; i++) {
arr.push(n1);
nextTerm = n1 + n2;
n1 = n2;
n2 = nextTerm;
}
var newStr = arr.join(' ').trim()
document.getElementById("result").innerHTML=newStr;
}
return false;
}<!DOCTYPE html>
<html lang="en">
<head>
<title>Fibonacci Series</title>
<script src="script.js"></script>
</head>
<body>
<form onsubmit=" return getFibonacci()">
<label for="Enter the number to get a fibonacci">Enter the number to get a fibonacci</label>
<input type="number" id="fibo" name="fibo"><br>
<input type="submit" value="Get Fibonacci Numbers" id="fibobtn">
<div id="result"></div>
</form>
</body>
</html>一切似乎都工作正常，我收到了斐波那契数列和所需的其他消息，但我的测试用例由于此错误而失败。请告诉我该怎么做才能解决这个问题。
I solved the issue. The test cases kept on failing probably because there was a try catch block that needed to be implemented. I completely forgot about that. The test cases worked when I added the try catch block.
Thanks for all the suggestions.
Problem Statement: I need to design a simple html form that takes a limit as input and displays the first given number of the Fibonacci series.
for eg. if 5 is given as input it displays: 0 1 1 2 3
if 8 is given as input it displays: 0 1 1 2 3 5 8 13
But I keep on getting this error:
testFiboForNonZeroPositiveInput:
Check for the logic and check if the correct output is displayed in div with id 'result'
testFiboForZeroInput:
Check for the logic and check if the correct output is displayed in div with id 'result'
TEST CASE FAILED
Here is my code:
function getFibonacci(){
var fib=document.getElementById("fibo").value;
var text;
var arr=[];
if (fib.length===0){
text="Please, specify a number.";
document.getElementById("result").innerHTML = text;
}
else if (fib<0){
text="Please, specify a positive number.";
document.getElementById("result").innerHTML = text;
}
else{
var n1 = 0, n2 = 1, nextTerm, i;
for (i = 1; i <= fib; i++) {
arr.push(n1);
nextTerm = n1 + n2;
n1 = n2;
n2 = nextTerm;
}
var newStr = arr.join(' ').trim()
document.getElementById("result").innerHTML=newStr;
}
return false;
}<!DOCTYPE html>
<html lang="en">
<head>
<title>Fibonacci Series</title>
<script src="script.js"></script>
</head>
<body>
<form onsubmit=" return getFibonacci()">
<label for="Enter the number to get a fibonacci">Enter the number to get a fibonacci</label>
<input type="number" id="fibo" name="fibo"><br>
<input type="submit" value="Get Fibonacci Numbers" id="fibobtn">
<div id="result"></div>
</form>
</body>
</html>Everything seems to work fine and I get the Fibonacci series and the other messages as required but my test cases fail due to this error. Please tell me what to do to fix this issue.
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我对代码进行了这些更改并且测试用例有效：
（添加了必需的 try catch 块）
I made these changes to the code and the test cases worked:
(Added a required try catch block)
label上的for属性必须引用 id。A
forattribute onlabelmust by referencing to an id.