如何在JavaScript中的2个符号[关键字]之间复制文本？

Question

How do I replace text between 2 symbols, in my case "." and "/" "." and "/" (without the quotes)

While doing some research at Stack, I found some answers, but they didn't help much.

I think the problem is using common operators as a part of string.

I tried using split

var a = "example.com/something"
var b = a.split(/[./]/);
var c = b[0];

I also tried this:

srctext = "example.com";
var re = /(.*.\s+)(.*)(\s+/.*)/;
var newtext = srctext.replace(re, "$2");

But the above 2 didn't seem to work.

I would be real glad if someone were to solve the question and please explain the use of escape sequences using an example or two. For a side note, I tried Googling it up but the data was not too helpful for me.

Answer 1

You can use RegEx \\..*?\\/ with String#replace to remove anything that is between the . and / .

"example.com/something".match(/\.(.*?)\//)[1] // com

RegEx Explanation:

1. \\. : Match . literal
2. (.*?) : Match anything except newline, non-greedy and add it in first captured group
3. \\/ : Match forward slash

Answer 2

Try this code.

var a = "example.com/something";
var textToChange = 'org';
var result = a.replace(/(\.)([\w]+)(\/)/, '$1' + textToChange + '$3');

result will be example.org/something

$1 equals .

$2 is the string you want to change

$3 equals /

Currently I only assumed the text you want to change is mixture of alphabets. You can change [\\w]+ to any regular expression to fit the text you want to change.

Answer 3

The example given in your question will work if you make a small change

var a = "example.com/something"
var b = a.split(/[./]/);
var c = b[1];
alert(c);

b[1] will give you string between . and / not b[0]

Answer 4

something as simple as

var a = "example.com/something"
var c = a.substring( a.indexOf( "." ) + 1, a.indexOf( "/", a.indexOf( "." ) ) );
alert(c);

for replacing,

a = a.replace( c, "NEW" );
alert(a);

to replace it with quotes

a = a.replace( c, "\"\"" );
alert(a);