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String Method

SyntaxDescription
charAt()Returns the character at a specified index (position)
charCodeAt()Returns the Unicode of the character at a specified index
concat()Returns two or more joined strings
endsWith()Returns if a string ends with a specified value
fromCharCode()Returns Unicode values as characters
includes()Returns if a string contains a specified value
indexOf()Returns the index (position) of the first occurrence of a value in a string
lastIndexOf()Returns the index (position) of the last occurrence of a value in a string
localeCompare()Compares two strings in the current locale
match()Searches a string for a value, or a regular expression, and returns the matches
repeat()Returns a new string with a number of copies of a string
replace()Searches a string for a value, or a regular expression, and returns a string where the values are replaced
search()Searches a string for a value, or regular expression, and returns the index (position) of the match
slice()Extracts a part of a string and returns a new string
split()Splits a string into an array of substrings
startsWith()Checks whether a string begins with specified characters
substr()Extracts a number of characters from a string, from a start index (position)
substring()Extracts characters from a string, between two specified indices (positions)
toLocaleLowerCase()Returns a string converted to lowercase letters, using the host's locale
toLocaleUpperCase()Returns a string converted to uppercase letters, using the host's locale
toLowerCase()Returns a string converted to lowercase letters
toString()Returns a string or a string object as a string
toUpperCase()Returns a string converted to uppercase letters
trim()Returns a string with removed whitespaces
valueOf()Returns the primitive value of a string or a string object

String Method

SyntaxDescription
charAt()Returns the character at a specified index (position)
charCodeAt()Returns the Unicode of the character at a specified index
concat()Returns two or more joined strings
endsWith()Returns if a string ends with a specified value
fromCharCode()Returns Unicode values as characters
includes()Returns if a string contains a specified value
indexOf()Returns the index (position) of the first occurrence of a value in a string
lastIndexOf()Returns the index (position) of the last occurrence of a value in a string
localeCompare()Compares two strings in the current locale
match()Searches a string for a value, or a regular expression, and returns the matches
repeat()Returns a new string with a number of copies of a string
replace()Searches a string for a value, or a regular expression, and returns a string where the values are replaced
search()Searches a string for a value, or regular expression, and returns the index (position) of the match
slice()Extracts a part of a string and returns a new string
split()Splits a string into an array of substrings
startsWith()Checks whether a string begins with specified characters
substr()Extracts a number of characters from a string, from a start index (position)
substring()Extracts characters from a string, between two specified indices (positions)
toLocaleLowerCase()Returns a string converted to lowercase letters, using the host's locale
toLocaleUpperCase()Returns a string converted to uppercase letters, using the host's locale
toLowerCase()Returns a string converted to lowercase letters
toString()Returns a string or a string object as a string
toUpperCase()Returns a string converted to uppercase letters
trim()Returns a string with removed whitespaces
valueOf()Returns the primitive value of a string or a string object