Can't able to replace forward slash with backward slash - javascript

var mystr = '\Data\Dashboard\myfolder\3.jpg';
mystr .replace(/\//g, '//');
It is removing all the slashes when i'm trying to replace. Can anyone tell me how to replace for this particular string.
End solution should be this '/Data/Dashboard/myfolder/3.jpg'
Any help will be appreciated!


Since you have \ in your string which is considered as escape sequence ( You need to escape it ). see console.log
var mystr = '\Data\Dashboard\myfolder\3.jpg';
console.log(mystr)
var mystr1 = '\\Data\\Dashboard\\myfolder\\3.jpg'; // Escaped '/' string
console.log(mystr1)


try with this one
var mystr = '\\Data\\Dashboard\\myfolder\\3.jpg';
var regex = /\\/g;
var replaced = mystr.replace(regex, '/');
console.log(replaced);


You can use the replace function:
str.replace('\\', "/");

Related

Regex remove all string start with special character

I have a string look like:
var str = https://sharengay.com/movie13.m3u8?pid=144.21.112.0&tcp=none
I want to remove at start ?pid= to end. The result look like:
var str = https://sharengay.com/movie13.m3u8
I tried to:
str = str.replace(/^(?:?pid=)+/g, "");
But it show error like:
Invalid regular expression: /^(?:?pid=)+/: Nothing to repeat

If you really want to do this at the string level with regex, it's simply replacing /\?pid=.*$/ with "":
str = str.replace(/\?pid=.*$/, "");
That matches ?pid= and everything that follows it (.*) through the end of the string ($).
Live Example:
var str = "https://sharengay.com/movie13.m3u8?pid=144.21.112.0&tcp=none";
str = str.replace(/\?pid=.*$/, "");
console.log(str);

You can use split
var str = "https://sharengay.com/movie13.m3u8?pid=144.21.112.0&tcp=none"
var result = str.split("?pid=")[0];
console.log(result);

You can simply use split(), which i think is simple and easy.
var str = "https://sharengay.com/movie13.m3u8?pid=144.21.112.0&tcp=none";
str = str.split("?pid");
console.log(str[0]);

You may create a URL object and concatenate the origin and the pathname:
var str = "https://sharengay.com/movie13.m3u8?pid=144.21.112.0&tcp=none";
var url = new URL(str);
console.log(url.origin + url.pathname);

You have to escape the ? and if you want to remove everything from that point you also need a .+:
str = str.replace(/\?pid=.+$/, "")

You can use split function to get only url without query string.
Here is the example.
var str = 'https://sharengay.com/movie13.m3u8?pid=144.21.112.0&tcp=none';
var data = str.split("?");
alert(data[0]);

Replace multiple occurences of a comment with javascript

I want to replace multiple occurences of comment and try like below
JsFiddle
Code:
var str = '<!--#test--><!--#test1-->'
str = str.replace('<!--/g', '').replace('-->/g', '');
alert(str)

Your problem is that you're trying to use a string instead of a regular expression. For example, this works.
var str = '<!--#test-->'
str = str.replace(/<!--/g, '').replace(/-->/g, '');
alert(str)

Plain regex commands need to be inside //.
Also, use the
Disjunction; Alternative | (pipe character)
str = str.replace(/<!--|-->/g, ''); // #test#test1

how to remove forward slash from my string?

i have string like
var str='Dowagiac\'s Olympic wrestler recalled'
i want to remove (forward slash) from string.
var str1=str.replace(/\'/g, '\\\'');
alert(str1);

No regex, but it will still do the trick.
str = str.split('\\').join('');

just replace "\" with "".
var str="Dowagiac\'s Olympic wrestler recalled";
foo = str.replace("\\","");
alert(foo);
fiddle

String replace last character occurrence slash

My url looks like this: ://example/example/.com. I want to remove the last slash of the string. My attempt so far (but doesn't work):
.replace(/\/$/g, '');
Can someone help me along?

You have to escape the slash character in a regular expression literal. Capture the characters after the last slash until the end of the string and use in the replacement:
s = s.replace(/\/([^\/]*)$/, '$1');
(You don't need the g flag for this one, as you know that there is never more than one match.)
Demo: http://jsfiddle.net/Guffa/jkn52/
Alternatively, use a poositive look-ahead to match a slash that doesn't have another slash until the end of the string:
s = s.replace(/\/(?=[^\/]*$)/, '');
Demo: http://jsfiddle.net/Guffa/jkn52/2/

var str = "/1/2/3/4/5"
var index = str.lastIndexOf("/");
var newStr = str.substr(0, index ) + str.substr(index + 1);
console.log(newStr);
demo: http://jsfiddle.net/Jn9bm/

It's a little verbose, but it works:
var url = "//example/example/.com";
var slash_position = url.lastIndexOf('/');
url = url.substr(0, slash_position) + url.substr(slash_position+1);

Try This:
var s= someString.replace(/\//g, "");

Javascript replace regex wildcard

I have a string which I need to run a replace.
string = replace('/blogs/1/2/all-blogs/','');
The values 1, 2 and all-blogs can change. Is it possible to make them wildcards?
Thanks in advance,
Regards

You can use .* as a placeholder for "zero or more of any character here" or .+ for "one or more of any character here". I'm not 100% sure exactly what you're trying to do, but for instance:
var str = "/blogs/1/2/all-blogs/";
str = str.replace(/\/blogs\/.+\/.+\/.+\//, '');
alert(str); // Alerts "", the string is now blank
But if there's more after or before it:
str = "foo/blogs/1/2/all-blogs/bar";
str = str.replace(/\/blogs\/.+\/.+\/.+\//, '');
alert(str); // Alerts "foobar"
Live example
Note that in both of the above, only the first match will be replaced. If you wanted to replace all matches, add a g like this:
str = str.replace(/\/blogs\/.+\/.+\/.+\//g, '');
// ^-- here
You can read up on JavaScript's regular expressions on MDC.

js> 'www.google.de/blogs/1/2/all-blogs'.replace(/\/blogs\/[^\/]+\/[^\/]+\/[^\/]+\/?/, '');
www.google.de

What about just splitting the string at slashes and just replacing the values?
var myURL = '/blogs/1/2/all-blogs/', fragments, newURL;
fragments = myURL.split('/');
fragments[1] = 3;
fragments[2] = 8;
fragments[3] = 'some-specific-blog';
newURL = fragments.join('/');
That should return:
'/blogs/3/8/some-specific-blog'

Try this
(/.+){4}
escape as appropriate

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