Nov 24, 2009 · Usually I would expect a String.contains() method, but there doesn't seem to be one. What is a reasonable way to check for this?

Possible Duplicates: Check if text is in a string JavaScript: string contains I'm trying to check if a string I import into my application has a certain piece of text. I know how to do this w...

1168 This question already has answers here: How to check whether a string contains a substring in JavaScript? (3 answers)

Apr 7, 2011 · Pretty straight forward. In javascript, I need to check if a string contains any substrings held in an array.

16 ES6 contains inbuilt method (includes) in String's prototype, which can be used to check if string contains another string or not.

Jul 23, 2017 · If you want to search for a string contained in a variable inside another string variable, indexOf is the fastest because you'd need to create a RegExp object and process the string to …

Oct 20, 2020 · How to check if a string contains specific words in javascript Asked 5 years, 3 months ago Modified 4 months ago Viewed 7k times

6 In javascript the includes () method can be used to determines whether a string contains particular word (or characters at specified position). Its case sensitive.

I want to use JavaScript (I can also use jQuery) to do check whether a string matches the regex ^([a-z0-9]{5,})$, and get a true or false result. match() seems to check whether part of a string matches a …

Jun 22, 2009 · If it is equal to the length of the string, that means all the letters passed the regex test, which means the string is uppercase. If not, the string is lowercase.