Javascript替换字符串

Question

我想改变这个

[s=http://stackoverflow.com/questions/ask?title=Javascript%20replace%20a%20string]Text[/s]

进入这个

 <a href="http://stackoverflow.com/questions/ask?title=Javascript%20replace%20a%20string">Text</a>  

使用javascript

我试过这个。

<script>
var str = "[s=/site_menu.xhtml?get-d=4%2027&get-id=315&get-title=DanMachi%20Season%202&get-main=DanMachi]DanMachi Season 2[/s]";
var res = str.replace("[s=", '&lt;a href="');
var ser = res.replace("[/s]", "&lt;/a&gt;");
var serr = ser.replace("]", ':admin-hash-amp:"&gt;');
document.write(serr);
</script>

Answer 1

您可能想要考虑简单地创建一个能够为您封装所有这些内容的函数，特别是如果您打算在应用程序的多个区域内使用它们：

function toHyperLink(input){
    return input.replace('[s=','<a href="')
                .replace(']','">')
                .replace('[/s]','</a>');
}

示例

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var input = '[s=http://stackoverflow.com/questions/ask?title=Javascript%20replace%20a%20string]Text[/s]';
console.log(`Input: ${input}`);
console.log(`Output: ${convertToHyperlink(input)}`);

function convertToHyperlink(input) {
  return input.replace('[s=', '<a href="').replace(']', '">').replace('[/s]', '</a>');
}

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Answer 2

进行转换后，你应该创建一个元素，而不是写出来。

var str = "[s=http://stackoverflow.com/questions/ask?title=Javascript%20replace%20a%20string]Text[/s]";
var res = str.replace("[s=", '<a href="');
var ser = res.replace("[/s]", "</a>");
var serr = ser.replace("]", '">');    

var text = serr.slice(serr.indexOf(">") + 4, serr.indexOf("</a&gt"))
var href = serr.slice(serr.indexOf("href=\"") + 6, serr.indexOf("\"&gt"))

var link = document.createElement("a");
link.text = text;
link.href = href;

document.getElementById("myDIV").appendChild(link);

Answer 3

试试这个

var str = "[s=http://stackoverflow.com/questions/ask?title=Javascript%20replace%20a%20string]Text[/s]";
var r = str.replace(/\[s=(.*?)\](.*?)(\[\/s\])/gi,"<a href='$1'>$2</a>");
document.write(r);

Answer 4

我猜你也可能喜欢;

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var str = "[s=http://stackoverflow.com/questions/ask?title=Javascript%20replace%20a%20string]Text[/s]",
    res = str.replace(/\[s(.+)\](.+)\[\/s\]/, "<a href$1>$2</a>");
console.log(res);

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