[英]Getting value from text input using document.getElementByID not working
I'm doing a simple project with javascript and it requires me to get a value out of an HTML text input with javascript. 我正在用javascript做一个简单的项目,它要求我用javascript从HTML文本输入中获取值。 In the following code I've found that nothing after line 6 works and I have no idea why.
在下面的代码中,我发现在第6行之后没有任何工作,我不知道为什么。 This has been driving me crazy for like two hours and I'm kind of at my wits end.
这让我疯狂了两个小时,我有点在我的智慧结束。 Please help!
请帮忙!
function letsPlayAGame() {
var answer = Math.floor(Math.random() * 100 + 1);
var guess = document.getElementByID("theinput").value;
if (Number.isInteger(guess) == false) {
document.getElementByID("label").innerHTML =
"Please enter a number between 1 and 100!";
} else if (guess < 1 || guess > 100) {
document.getElementByID("label").innerHTML =
"Please enter a number between 1 and 100!";
} else {
alert("not this part");
}
}
It should be: 它应该是:
document.getElementById
instead of 代替
document.getElementByID
as Javascript is case sensitive. 因为Javascript区分大小写。
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