javascript 在 jS 中减去两个字符串
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Subtract two strings in jS
提问by Nithya S
I want to find the difference between two strings in Javascript.
我想在 Javascript 中找到两个字符串之间的区别。
Given two strings
给定两个字符串
var a = "<div>hello</div><div>hi</div><div>bye/</div>";
var b = "<div>hello</div><div>hi</div>";
The result should be "<div>bye</div>".
结果应该是 "<div>bye</div>".
Like in formula:
就像在公式中：
var result = a - b;
& I need this implementation in Javascript (Is there any default method is available for this in JS??)
＆我需要在 Javascript 中实现这个（在 JS 中是否有可用的默认方法？？）
Can anyone help me out?
谁能帮我吗？
回答by
You can obtain the desired output with
您可以获得所需的输出
var s = a.replace(b, '')
var s = a.replace(b, '')
回答by jojois74
This seems like an x/y question. But in any case, I'll try to help you out.
这似乎是一个x/y 问题。但无论如何，我会尽力帮助你。
We want to find the location of bwithin a.
我们希望找到的位置b内a。
var start = a.indexOf(b);
var end = start + b.length;
Now put it together.
现在把它放在一起。
return a.substring(0, start - 1) + a.substring(end);
