String

Question 1

String.charAt()

Answer 1

Returns the character at the specified index position.

Question 2

String.charCodeAt()

Answer 2

Returns the Unicode of the character at the specified index.

Question 3

String.concat()

Answer 3

Joins two or more strings, and returns a new joined string.

Question 4

String.fromCharCode()

Answer 4

Converts Unicode values to characters.

Question 5

String.indexOf()

Answer 5

Returns the position of the first found occurrence of a specified value in a string.

Question 6

String.lastIndexOf()

Answer 6

Returns the position of the last found occurrence of a specified value in a string

Question 7

String.length()

Answer 7

Returns the length of a string.

Question 8

String.localeCompare()

Answer 8

Compares two strings in the current locale.

Question 9

String.match()

Answer 9

Searches a string for a match against a regular expression, and returns the matches.

Question 10

String.replace()

Answer 10

Searches a string for a specified value, or a regular expression, and returns a new string where the specified values are replaced.

Question 11

String.search()

Answer 11

Searches a string for a specified value, or regular expression, and returns the position of the match.

Question 12

String.slice()

Answer 12

Extracts a part of a string and returns a new string

Question 13

String.split()

Answer 13

Splits a string into an array of substrings.

Question 14

String.substring()

Answer 14

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

Question 15

String.toLocaleLowerCase()

Answer 15

Converts a string to lowercase letters, according to the host’s locale.

Question 16

String.toLocaleUpperCase()

Answer 16

Converts a string to uppercase letters, according to the host’s locale.

Question 17

String.toLowerCase()

Answer 17

Converts a string to lowercase letters

Question 18

String.toString()

Answer 18

Returns the value of a string object.

Question 19

String.toUpperCase()

Answer 19

Converts a string to uppercase letters.

Question 20

String.trim()

Answer 20

Removes whitespace from both ends of a string.

Question 21

String.valueOf()

Answer 21

Returns the primitive value of a String object.

Question 22

Returns the character at the specified index position.

Answer 22

String.charAt()

Question 23

Returns the Unicode of the character at the specified index.

Answer 23

String.charCodeAt()

Question 24

Joins two or more strings, and returns a new joined string.

Answer 24

String.concat()

Question 25

Converts Unicode values to characters.

Answer 25

String.fromCharCode()

Question 26

Returns the position of the first found occurrence of a specified value in a string.

Answer 26

String.indexOf()

Question 27

Returns the position of the last found occurrence of a specified value in a string

Answer 27

String.lastIndexOf()

Question 28

Returns the length of a string.

Answer 28

String.length()

Question 29

Compares two strings in the current locale.

Answer 29

String.localeCompare()

Question 30

Searches a string for a match against a regular expression, and returns the matches.

Answer 30

String.match()

Question 31

Searches a string for a specified value, or a regular expression, and returns a new string where the specified values are replaced.

Answer 31

String.replace()

Question 32

Searches a string for a specified value, or regular expression, and returns the position of the match.

Answer 32

String.search()

Question 33

Extracts a part of a string and returns a new string

Answer 33

String.slice()

Question 34

Splits a string into an array of substrings.

Answer 34

String.split()

Question 35

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

Answer 35

String.substring()

Question 36

Converts a string to lowercase letters, according to the host’s locale.

Answer 36

String.toLocaleLowerCase()

Question 37

Converts a string to uppercase letters, according to the host’s locale.

Answer 37

String.toLocaleUpperCase()

Question 38

Converts a string to lowercase letters

Answer 38

String.toLowerCase()

Question 39

Returns the value of a string object.

Answer 39

String.toString()

Question 40

Converts a string to uppercase letters.

Answer 40

String.toUpperCase()

Question 41

Removes whitespace from both ends of a string.

Answer 41

String.trim()

Question 42

Returns the primitive value of a String object.

Answer 42

String.valueOf()