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javascript - 添加到 span 的动画 Angular 色

转载 作者:太空宇宙 更新时间:2023-11-04 07:34:30 24 4
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是否可以在将新字符添加到#messageCorrectrlyTyped 范围时添加效果?那么当用户输入正确的字符时?我尝试将 transition: all 1s; 设置到 css 中,但它不起作用。你能帮帮我吗?

var messageToType = document.querySelector("#messageToType");
var messageCorrectlyTyped = document.querySelector("#messageCorrectlyTyped");
var correctlyTyped = "";

document.addEventListener("keypress", function(e){
if (messageToType.textContent.length > 0) {
var charToPress = messageToType.textContent[0];
var charPressed = String.fromCharCode(e.keyCode);
if (charPressed === charToPress) {
messageToType.textContent = messageToType.textContent.substring(1);
messageCorrectlyTyped.textContent += charPressed;
messageCorrectlyTyped.style.color = "green";
}
}
});
#messageToType {
font-family: "Courier New";
font-size: 20px;
font-weight: 700;
}

#messageCorrectlyTyped {
font-family: "Courier New";
font-size: 20px;
font-weight: 700;
}

#container {
margin: auto;
width: 50%;
text-align: center;
}
<!DOCTYPE html>
<html>
<head>
<title>Test Type</title>
<link rel="stylesheet" type="text/css" href="testType.css">
</head>
<body>
<div id="container">
<span id="messageCorrectlyTyped"></span><span id="messageToType">ciao</span>
</div>

<script type="text/javascript" src="testType.js"></script>
</body>
</html>

最佳答案

这是一个非常广泛的问题。

这是一个例子,告诉我它是否适合你:

const hider = document.querySelector('.hider');

const width = hider.offsetWidth;
hider.style.left = '0px';

const inter = setInterval(() => {
let left = +hider.style.left.replace('px', '');
if(left <= width) {
hider.style.left = (left + 1) + 'px';
} else { clearInterval(inter); }
}, 5);
.container {
position: relative;
}

.hider {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
margin-right: -1px;
background: linear-gradient(to right, rgba(255,255,255,0) 0%,rgba(255,255,255,1) 4%);
}
<div class="container">
<div class="text">Lorem Ipsum Dolor Sit Amet</div>
<div class="hider"></div>
</div>

关于javascript - 添加到 span 的动画 Angular 色,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/49071622/

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