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What is a regular expression that accepts only characters ranging from a to z?
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You can use this regex /^[ A-Za-z0-9_@./#&+-]*$/.
Regex uses backslash ( \ ) for two purposes: for metacharacters such as \d (digit), \D (non-digit), \s (space), \S (non-space), \w (word), \W (non-word). to escape special regex characters, e.g., \. for . , \+ for + , \* for * , \? for ? .
$ means "Match the end of the string" (the position after the last character in the string). Both are called anchors and ensure that the entire string is matched instead of just a substring.
The pattern itself would be [a-z] for single character and ^[a-z]+$ for entire line. If you want to allow uppercase as well, make it [a-zA-Z] or ^[a-zA-Z]+$
175
Try this to allow both lower and uppercase letters in A-Z:
/^[a-zA-Z]+$/
Remember that not all countries use only the letters A-Z in their alphabet. Whether that is an issue or not for you depends on your needs. You may also want to consider if you wish to allow whitespace (\s).
24
Allowing only character and space in between words :
^[a-zA-Z_ ]*$
Regular Expression Library
27
^[A-Za-z]+$ To understand how to use it in a function to validate text, see this example
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