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Extracting a string from another string Javascript [closed]

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I have this particular string :
TOYIN KEMIOGS/OYO/2277TGOGSLAGOS
from this string containing 2 '/'
I want it to extract from wherever we have OGS and stop at wherever we have OGS. OGS always start and end my extracted string
I want an extracted result like this
OGS/OYO/2277TGOGS
Thanks so much

You can achieve it but as a string between first occurrence and last occurrence of OGS as follows:
var a = 'TOYIN KEMIOGS/OYO/2277TGOGSLAGOS';
console.log(a.slice(a.indexOf("OGS"),a.lastIndexOf("OGS")) +"OGS");

You can use match method of string to extract the data required.
const str = "TOYIN KEMIOGS/OYO/2277TGOGSLAGOS";
const result = str.match(/OGS.*OGS/); // Its greedy in nature so you can also use /OGS.*?OGS/
console.log(result[0]);

let str = "TOYIN KEMIOGS/OYO/2277TGOGSLAGOS";
let phrase = "OGS";
let start = str.indexOf(phrase);
let end = str.lastIndexOf(phrase) + phrase.length;
let newStr = str.slice(start, end);
console.log(newStr);

You can treat the start/stop sequences as non-matching groups:
const str = 'TOYIN KEMIOGS/OYO/2277TGOGSLAGOS';
const [match] = str.match(/(?:OGS).+(?:OGS)/);
console.log(match); // "OGS/OYO/2277TGOGS"
If you don't want to keep the start/stop sequences ("OGS"), you can treat them as positive lookbehind/lookaheads:
const str = 'TOYIN KEMIOGS/OYO/2277TGOGSLAGOS';
const [match] = str.match(/(?<=OGS).+(?=OGS)/);
console.log(match); // "/OYO/2277TG"
Here is a string manipulation version, which captures the first and last index.
const extractBetween = (str, marker) =>
str.slice(str.indexOf(marker),
str.lastIndexOf(marker) + marker.length);
const str = 'TOYIN KEMIOGS/OYO/2277TGOGSLAGOS';
const match = extractBetween(str, 'OGS');
console.log(match); // "OGS/OYO/2277TGOGS"

Remove word before the slash with jquery [closed]

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How to remove word before slash using jquery?
/bis/admin
In my case, I want to remove "bis". any help?

You can use the JavaScript split method
var text = "/bis/admin";
var result = text.split("/");
console.log(result[result.length - 1]);
Another example
var text = "/bis/admin/dashboard";
var result = text.split("/");
console.log(result[result.length - 1]);

You could do the following using a regular expression
var el = '/bis/admin';
var newEl = el.replace(/^.*\//, "");
newEl will be 'admin'

You can just do:
let myString = '/bis/admin';
myString.split('/')[myString.split('/').length-1];

var str = "/bis/admin";
var splitStr = str.split("/");
var out = "/" + n[n.length - 1] //Out contains /admin

split string with /.
var strn = "/bis/admin";
console.log(strn.split("/")[2]);
Or you can simply use regex
var strn = "/bis/admin";
console.log(strn.replace(/^\/([^/]*)\//,""));

How can I do string replace in jquery [duplicate]

This question already has answers here:
How do I replace all occurrences of a string in JavaScript?
(78 answers)
Closed 6 years ago.
I have this code
$("#title").keyup(function(){
var titleval = $("#title").val();
var res = titleval.replace(" ", "-");
$("#newsurl").val(res);
});
to replace spaces into dash to get URL like this
wordone-wordtow-wordthree
but i have problem with this code it's just replace first space like this
wordone-wordtow wordthree
How can i solve this problem

You need to do a global match, you can do this with a regex
var res = titleval.replace(/\s/g, "-");
Though String.prototype.replace does support having flags passed, this is deprecated in firefox and already doesn't work in chrome/v8.

Alternate method (if regex is not mandatory) could be to split and join
var res = titleval.split(" ").join("-");
or
var res = titleval.split(/\s+/).join("-");

Use regex with global flag
titleval.replace(/\s/g, "-");

try like this:
$("#title").keyup(function(){
var titleval = $("#title").val();
var res = titleval.replace(/\s+/g, '-');
$("#newsurl").val(res);
});

Regular expression for remove last n characters [closed]

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I have a requirement to remove last n characters from string or remove 'page' from a particular string.
Eg:
var string = 'facebookpage';
Expected output string = 'facebook'
I would like to remove 'page' from the string.
Done it using substring.
var str = "facebookpage";
str = str.substring(0, str.length - 4);
Could you help me to find some better way to do it.

Regex for this:
//str - string;
//n - count of symbols, for return
function(str, n){
var re = new RegExp(".{" + n + "}","i");
return str.match(re);
};
EDIT:
For remove last n characters:
var re = new RegExp(".{" + n + "}$","i");
return str.replace(re, "");
UPDATE:
But use regex for this task, not good way; For example, AVG Runtime for 100000 iterations:
Str length solution = 63.34 ms
Regex solution = 172.2 ms

Use javascript replace function
var str = "facebookpage";
str = str.replace('page','');

You can use this regular expression :
(.*)\\w{4}
code :
var regex =(new RegExp("(.*)\\w{4}"))
val output = regex .exec("facebookpage")
// output is : ["facebookpage", "facebook"]
// output[1] is the Expected output which you want.
Hope this helps.

Extract a part of a string [closed]

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I need to extract a part of a string. My goal is to extract from this string:
217591953.1396968335.2.2.utmcsr=search_email_alerts|utmccn=(not set)|utmcmd=email
the content between utmcsr= and |
So the output would be : "search_email_alerts".

var str = "217591953.1396968335.2.2.utmcsr=search_email_alerts|utmccn=(not set)|utmcmd=email";
var newStr1 = str.split("utmcsr=");
var newStr2 = newStr1[1].split("|");
var extractedStr = newStr2[0];
The variable extractedStr will be "search_email_alerts".

Use regular expression like following:
var test = "217591953.1396968335.2.2.utmcsr=search_email_alerts|utmccn=(not set)|utmcmd=email";
var result = test.match("/utmcsr=([^|]*)\|/");
alert(result[1]); // result[1] is your desired string

var str = "217591953.1396968335.2.2.utmcsr=search_email_alerts|utmccn=(not set)|utmcmd=email";
match = str.match(/utmcsr=(.*?)\|/);
output = match[1];

var str = "217591953.1396968335.2.2.utmcsr=search_email_alerts|utmccn=(not set)|utmcmd=email"
var result = str.substring(str.indexOf("utmcsr=") + 7,str.indexOf("|"))
Result contains the desired text.

You can do that in two ways
substring
match
Here's how you can do it with regex:
var str= "217591953.1396968335.2.2.utmcsr=search_email_alerts|utmccn=(not set)|utmcmd=email";
var res = str.match(/^.*utmcsr=(.*)\|.*\|.*$/);
res[1]

Here you go -
var str = "217591953.1396968335.2.2.utmcsr=search_email_alerts|utmccn=(not set)|utmcmd=email";
var startIndex = str.indexOf("utmcsr=") + "utmcsr=".length;
var numOfCharsToExtract = str.indexOf("|") - startIndex;
var result = str.substring(startIndex, numOfCharsToExtract);