Most common javascript string function

charAt

charAt method returns the character at the specified index in a string

charCodeAt method returns Unicode of the character at the specified index in a string

substr extracts the characters from a string, beginning at a specified start position, and through the specified number of character

substring Extracts the characters from a string, between two specified indices

toLowerCase converts a string to lowercase letters

toUpperCase converts a string to uppercase letters

trim remove white space from start and end of string

repeat returns a new string with a specified number of copies of an existing string

startsWith method is used to check whether a string starts with a specific word or not. it returns true or false

endsWith is used to check whether a string ends with a specific word or not. it returns true or false

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