CODEWITHSUNDEEP
javascriptstring
CODE_01
CODE_01

Reputation: 5

How to remove part of a string in Javascript?

I'm using Feedroll for showing RSS entries on my Tumblr.

Let's say I have:

document.write('<li class="rss-item"><a class="rss-item" href="http://mywebsite.com/arandomlink" target="_self"> [element1] element2 element3 element4</a><br />');
document.write('</li>');

element1 is a text "Thisismytext" (fixed length : 7)

element2 is a text "This Is My Text" (length not fixed)

element3 is a number "01" to "24" (fixed length : 2)

element4 is a text "THIS IS MY TEXT" (fixed length : 6 + space + 2)

(I have many entries and element1 and element4 don't change.)

I can't change the code from Feedroll or the titles of the entries.

Now, I would like to show my enrties ([element1] element2 element3 element4) like element 2 - element 3.

Example: [Thisismytext] This Is My Text 05 OTHER TEXT to This Is My Text - 05.

How do I do that?

I have tried split(), pop(), and substring() but I don't know how to use them.

And by the way, sorry for my English, I am French.

Upvotes: 0

Views: 73

Answers (1)

Stephen James
Stephen James

Reputation: 1287

Assuming you don't receive the elements individually and are just getting a bunch of markup that you want to reformat...

If you are receiving the string of text and you want to strip out the different elements, you might want to use a regular expression to match the elements.

The following expression would just matches the text [element1] element2 element3 element4 with the constraints that you mentioned.

http://www.regexr.com/3959m

regular expression : /\[(.{7})\]\s(.*)\s([0-9]{0,2})\s(.*)/g

sample text : [Thisism] This Is My Text 02 OTHER TEXT

matches :

enter image description here

If you are receiving the full HTML string, you'd have to alter the regular expression to handle the html tags.

More info on regular expressions here : http://www.regular-expressions.info/tutorial.html

Upvotes: 1

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