how to replace strings before another string

Question

I have this string:

 var str = "jquery12325365345423545423im-a-very-good-string";

What I would like to do, is removing the part 'jquery12325365345423545423' from the above string.

The output should be:

 var str = 'im-a-very-good-string';

How can I remove that part of the string using php? Are there any functions in php to remove a specified part of a string?

sorry for not including the part i have done

I am looking for solution in js or jquery

so far i have tried

var str="jquery12325365345423545423im-a-very-good-string";
str=str.replace("jquery12325365345423545423","");

but problem is numbers are randomly generated and changed every time.

so is there other ways to solve this using jquery or JS

Please post your code so far, explain what didn't work and what you tried to solve it. — elclanrs, Sep 11 '13 at 07:57
What pattern of characters are you trying to remove and/or keep? — Scotty Waggoner, Sep 11 '13 at 07:59
@hitesh what do you want exactly?I think you have got confused with the definition of string. Do you want that part of string to get removed?? — Ganesh Babu, Sep 11 '13 at 07:59
@hitesh I am guessing you will get more of one string, how does it change? that would change the answer, maybe `replace` is better, maybe a substring would make more sense. Also, [What have you tried?](http://mattgemmell.com/2008/12/08/what-have-you-tried/) — Daniel, Sep 11 '13 at 08:08
@simpleBob : sorry bob !!!! i just included the part i tried — Hitesh, Sep 11 '13 at 08:45
could you please upvote the question instead of downvoting it.........thanks — Hitesh, Sep 11 '13 at 08:45

score 4 · Answer 1 · answered Sep 11 '13 at 07:58

4

The simplest solution is to do it with:

str = str.replace(/jquery\d+/, '').replace(' ', '');

answered Sep 11 '13 at 07:58

hsz

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Keep in mind that it will only work if the string always has this format. EDIT: He now changed the post. – ptf Sep 11 '13 at 07:58
also wants to replace spaces – Scary Wombat Sep 11 '13 at 07:59

score 2 · Answer 2 · answered Sep 11 '13 at 07:58

2

You can use string replace.

var str = "jquery12325365345423545423im-a-very-good-string";
str.replace('jquery12325365345423545423','');

Then to removespaces you can add this.

str.replace(' ','');

answered Sep 11 '13 at 07:58

R P

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also wants to replace spaces – Scary Wombat Sep 11 '13 at 08:00

score 1 · Accepted Answer · answered Sep 11 '13 at 09:14

I think it will be best to describe the methods usually used with this kind of problems and let you decide what to use (how the string changes is rather unclear).

METHOD 1: Regular expression

You can search for a regular expression and replace the part of the string that matches the regular expression. This can be achieved through the JavaScript Replace() method.

In your case you could use following Regular expression: /jquery\d+/g (all strings that begin with jquery and continue with numbers, f.e. jquery12325365345423545423 or jquery0)

As code:

var str="jquery12325365345423545423im-a-very-good-string";
str=str.replace("/jquery\d+/g","");

See the jsFiddle example

METHOD 2: Substring

If your code will always have the same length and be at the same position, you should probably be using the JavaScript substring() method.

As code:

var str="jquery12325365345423545423im-a-very-good-string";
var code = str.substring(0,26);
str=str.substring(26);

See the jsFiddle example

Thanks i would go with REGEX ver of answer !! it is working like a charm :) — Hitesh, Sep 12 '13 at 05:46
http://stackoverflow.com/questions/1789945/how-can-i-check-if-one-string-contains-another-substring-in-javascript — Hitesh, Sep 13 '13 at 11:39

score 0 · Answer 4 · answered Sep 11 '13 at 08:06

0

Run this sample in chrome dev tools

var str="jquery12325365345423545423im-a-very-good-string";
str=str.replace("jquery12325365345423545423","");
console.log(str)

answered Sep 11 '13 at 08:06

Ankit_Shah55

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how to replace strings before another string

4 Answers4