Match specific word inside string url of file path

Question

I have a system path URL in the form of string from which I have to find the specific keyword "System". How can I achieve this? either by regex or any other way.

var key = "System";
var url = "/System/Library/PrivateFrameworks/PhotoLibrary.framework/Versions/A/XPCServices/com.apple.PhotoIngestService.xpc/Contents/MacOS/com.apple.PhotoIngestService";

Now url has word "System". I need a function which detects the key in url. If exist it return true.

I dont understand, can you give an example of your desired output? — ninesalt, Jun 28 '18 at 12:33
If "key" exists in "url" it must return true. i just need true or false. — Anand Vaidya, Jun 28 '18 at 12:35
You can simply use `indexOf` method: `if(url.indexOf('System') !== 1) { //Some code }` — im_tsm, Jun 28 '18 at 12:42

ninesalt · Answer 1 · 2018-06-28T12:50:32.293

-1

No need for regex.

    var key = "System"
    var url = "/System/Library/PrivateFrameworks/PhotoLibrary.framework/Versions/A/XPCServices/com.apple.PhotoIngestService.xpc/Contents/MacOS/com.apple.PhotoIngestService"
    var exists = url.contains(key)  //returns true

    var exists2 = url.indexOf(key) !== -1   //returns true

edited Jun 28 '18 at 12:50

answered Jun 28 '18 at 12:37

ninesalt

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I am getting error url.contains is not a function – Anand Vaidya Jun 28 '18 at 12:43
@vaidya Strange, I added another function. – ninesalt Jun 28 '18 at 12:50

Sudhir Ojha · Accepted Answer · 2018-06-28T12:47:08.163

-1

You can use indexOf(), returns the position of the string in the other string. If not found, it will return -1.

var key = "System";
var url = "/System/Library/PrivateFrameworks/PhotoLibrary.framework/Versions/A/XPCServices/com.apple.PhotoIngestService.xpc/Contents/MacOS/com.apple.PhotoIngestService";
var isExists = url.indexOf(key) !== -1;
console.log(isExists);

edited Jun 28 '18 at 12:47

answered Jun 28 '18 at 12:41

Sudhir Ojha

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Why downvote here ? Please give a reason. – Sudhir Ojha Jun 28 '18 at 13:01

Emeeus · Answer 3 · 2018-08-24T13:33:27.737

The best way is using includes() that returns true or false (not an index), I think is more clear and more maintainable for this purpose.

But as we can see here, it is not supported by IE now. Here the Polyfill made by MDN.

About the difference between includes() and indexOf() you could read this.

And here an example:

var key = "System";
var url = "/System/Library/PrivateFrameworks/PhotoLibrary.framework/Versions/A/XPCServices/com.apple.PhotoIngestService.xpc/Contents/MacOS/com.apple.PhotoIngestService";

var isPresent = url.includes(key);

console.log(isPresent);

Match specific word inside string url of file path

3 Answers3