确定两个字符串之一是否是另一个String Javascript的子字符串？
[英]Determining if one of the two strings is a substring of the other String Javascript?
问题描述
Suppose I have two text fields where the user can enter any text. 
假设我有两个文本字段，用户可以在其中输入任何文本。
One field can have: The sky is blue. 一个字段可以具有： The sky is blue.
Second field have: The ocean is blue. 第二场有： The ocean is blue.
In Javascript what is the easiest way to check if one string entered in one field is a substring for the other field? 在Javascript中，最简单的方法是检查在一个字段中输入的一个字符串是否是另一个字段的子字符串？
So far this is what I have: 到目前为止，这就是我所拥有的：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Substring Test</title>
<script type="text/javascript">
function displayContent() {
var contentEntered = document.getElementById("userContent").value;
var contentEnteredSecond = document.getElementById("secondUserContent").value;
document.getElementById("result").innerHTML += "<p> The content entered was " + contentEntered + " </p>";
document.getElementById("result").innerHTML += "<p> The content entered was " + contentEnteredSecond + " </p>";
}
</script>
</head>
<body>
<h1>Substring</h1>
<div id="mainCont">
<p>Please enter any content.</p>
<p>Content:
<input type="text" id="userContent">
</p>
<p>Content:
<input type="text" id="secondUserContent">
</p>
<p>
<input type="button" onclick="displayContent();" value="Submit">
</p>
<div id="result"></div>
</div>
</body>
</html>
3 个解决方案
解决方案1
2 2015-11-30 19:36:01
function checkSub(str1, str2){
if(str1.indexOf(str2) > -1 || str2.indexOf(str1) > -1) return true;
else return false;
}
解决方案2
1 2015-11-30 19:45:37
在ES6中，使用String.prototype.includes很简单：
str1.includes(str2) || str2.includes(str1);
解决方案3
0 2015-11-30 19:45:53
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