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Last Updated: June 11, 2026
Background of Learn Javascript Working With String Object Domain Substr

[Using Regular expression] A simple program to read an email and check whether the [Using Looping] A simple program to read an email and validate against the format A(A/9/_)...(A/9/_)..A.com where A is ... [Using charAt()] A simple program to read an email and check whether the In this video, you'll master everything you need to know about 00:00:00 intro 00:00:28 .charAt() 00:01:34 .indexOf() 00:02:03 .lastIndexOf() 00:02:15 .length 00:02:40 .trim() 00:03:13 .
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Learn Javascript: Working with String Object - Domain : substr()
Learn Javascript: Working with String Object - Domain : Reg. Exp
Learn Javascript: Working with Strings - Includes substring - test()
Learn Javascript: Working with String Object - Email : Loop/substr
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