Get only alphabets from string javascript

Your main issue is the use of the ^ and $ characters in the regex pattern. ^ indicates the beginning of the string and $ indicates the end, so you pattern is looking for a string that is ONLY a group of one or more letters, from the beginning to the end of the string.

Additionally, if you want to get each individual instance of the letters, you want to include the "global" indicator (g) at the end of your regex pattern: /[a-zA-Z]+/g. Leaving that out means that it will only find the first instance of the pattern and then stop searching . . . adding it will match all instances.

Those two updates should get you going.


EDIT:

Also, you may want to use match() rather than exec(). If you have a string of multiple values (e.g., "A01, B02, C03, AA18"), match() will return them all in an array, whereas, exec() will only match the first one. If it is only ever one value, then exec() will be fine (and you also wouldn't need the "global" flag).

If you want to use match(), you need to change your code order just a bit to:

var matches = sequence.match(/[a-zA-Z]+/g);

To return an array of separate letters remove +:

var matches = sequence.match(/[a-zA-Z]/g);

How do I get only the alphabet of a string?

Extract alphabets from a string using regex You can use the regular expression 'r[^a-zA-Z]' to match with non-alphabet characters in the string and replace them with an empty string using the re. sub() function. The resulting string will contain only letters.

How do I restrict only alphanumeric in Javascript?

You will use the given regular expression to validate user input to allow only alphanumeric characters. Alphanumeric characters are all the alphabets and numbers, i.e., letters A–Z, a–z, and digits 0–9.

How do you check if a string contains all alphabets in Javascript?

Checking for all letters.
Javascript function to check for all letters in a field function allLetter(inputtxt) { var letters = /^[A-Za-z]+$/; if(inputtxt.value.match(letters)) { return true; } else { alert("message"); return false; } } ... .
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How do you check if a string contains only alphabets and numbers in Javascript?

Use the test() method on the following regular expression to check if a string contains only letters and numbers - /^[A-Za-z0-9]*$/ . The test method will return true if the regular expression is matched in the string and false otherwise. Copied!