How cando I check for an empty/undefined/null string in JavaScript?

I saw this question, but I didn't see a JavaScript specific example. Is there a simple string.Empty available in JavaScript, or is it just a case of checking for ""?

How can I check for an empty/undefined/null string in JavaScript?

I saw this question, but I didn't see a JavaScript specific example. Is there a simple string.Empty available in JavaScript, or is it just a case of checking for ""?

How do I check for an empty/undefined/null string in JavaScript?

Is there a string.Empty in JavaScript, or is it just a case of checking for ""?

Fixed the question formation - missing auxiliary (or helping) verb - see e.g. <https://www.youtube.com/watch?v=t4yWEt0OSpg&t=1m49s> (see also <https://www.youtube.com/watch?v=kS5NfSzXfrI> (QUASM)). We don't have threads here (this is not a forum - see e.g. <http://meta.stackexchange.com/a/92115>.).

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edited Mar 8, 2020 at 23:38

Peter Mortensen

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How tocan I check for an empty/undefined/null string in JavaScript?

I saw this threadthis question, but I didn't see a JavaScript specific example. Is there a simple string.Empty available in JavaScript, or is it just a case of checking for ""?

How to check empty/undefined/null string in JavaScript?

I saw this thread, but I didn't see a JavaScript specific example. Is there a simple string.Empty available in JavaScript, or is it just a case of checking for ""?

How can I check for an empty/undefined/null string in JavaScript?

I saw this question, but I didn't see a JavaScript specific example. Is there a simple string.Empty available in JavaScript, or is it just a case of checking for ""?

edited title

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edited Dec 4, 2018 at 9:53

T.Todua

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How do youto check for an empty/undefined/null string in JavaScript?

replaced http://stackoverflow.com/ with https://stackoverflow.com/

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edited May 23, 2017 at 12:18

URL Rewriter Bot

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added 20 characters in body

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edited May 15, 2015 at 17:24

codecowboy

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i think, the tag was not correctly chosen. as the page title was set to "language features" and was not searchable from google, while the TOPIC IS ABOUT JS EMPTY STRING, so i think now it has better tags. if you think that i am not right, please, dont give my account some warnings...

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