Check if there's any string after a character

Question

I want to find out, how can i see if there's any character/string after a specific string part from a string. My question sounds ambiguous but here's my real example:

I can have 2 urls : http://domain/classAdd?itemId=1123123 or http://domain/classAdd?ItemId=

I want to put a condition in HTML regarding the url, to have specific header on my site. How can i check if the url has a itemId or not?

At moment i'm getting only :location.indexOf('classAdd?itemId=') == -1 I tried to verify the length but doesn't work. I searched a lot but i didn't find anything to answer my question, only how to get Specific string from a string. My Id is dynamic and the substring won't work

Thank you guys.

Your question is unclear. What do you need to do? Check if `itemId` is present and if yes, get its value? — Wiktor Stribiżew, Sep 23 '16 at 13:43
I want to know only if there's anything after `itemId`, i don't need it's value — TrulyXax, Sep 23 '16 at 13:44

Aleksandar Matic · Accepted Answer · 2016-09-23T13:39:15.493

2

check if this

window.location.href.substring(window.location.href.indexOf('classAdd?itemId=') + 16)

gives you the itemId

edited Sep 23 '16 at 13:39

answered Sep 23 '16 at 13:36

Aleksandar Matic

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Can i know why +16 ? – TrulyXax Sep 23 '16 at 13:36
Are talking about guid's length? – TrulyXax Sep 23 '16 at 13:37
That's the length of 'classAdd?itemId='. indexOf get's you the starting position of the substring and you neded to add it's length. Please check my answer edit. – Aleksandar Matic Sep 23 '16 at 13:39
yes, the code works, but i will have a dynamic domain and dynamic page 'classAdd' – TrulyXax Sep 23 '16 at 13:42
i need to check if there's anything after "itemId=" part – TrulyXax Sep 23 '16 at 13:42
window.location.href.substring(window.location.href.indexOf('itemId=') + 7) – Aleksandar Matic Sep 23 '16 at 13:43
`window.location.href.substring(window.location.href.indexOf('itemId=') + 7)` works well, but how can i see if there's something after itemId, i don't need it's value. I've got this line into an If statement into a `ng-show', and if there's something after itemId= i'll include an html , if not i'll include another html – TrulyXax Sep 23 '16 at 13:48
just check if window.location.href.substring(window.location.href.indexOf(‌'itemId=') + 7) != '' I don't use Angular, but I'm sure you can squeeze this in. – Aleksandar Matic Sep 23 '16 at 13:52

score 0 · Answer 2 · answered Sep 23 '16 at 13:43

0

function(){
    var indexOfEqual = window.location.href.indexOf("=");
    if(indexOfEqual < window.location.href.length) return true;
    return false;
}

answered Sep 23 '16 at 13:43

DrEarnest

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I think this is too general. What if there was e.g. OrderId= instead of ItemId=, it would still return true when really it should return false in TrulyXax's case. – Aleksandar Matic Sep 23 '16 at 13:49

Check if there's any string after a character

2 Answers2