String_Methods

Question 1

string.length

Answer 1

find length of string

Question 2

string[index]

Answer 2

Retrieving character from string

Question 3

string.includes(“zilla”)

Answer 3

Testing if a string contains a substring (eg “zilla” in “mozilla” will retunr true)

Question 4

string.startsWith(“abc”)

Answer 4

Want to know whether string starts with specific substring (in this case “abc”)

Question 5

string.endsWith(“abc”)

Answer 5

Want to know whether string end with a specific substring (in this case “abc”)

Question 6

string.indexOf()

Answer 6

Finding position of a substring in a string. Returns index of first occurrence of the substring. Return -1 if not present.

Question 7

string.slice(index, index)

Answer 7

extracts substring from a string. Only one index required if you want to extract all characters after a certain letter. 2 indexes required if you want from a certain index to another index.

Question 8

string.toLowerCase()

Answer 8

convert string to lowercase

Question 9

string.toUpperCase()

Answer 9

convert string to uppercase

Question 10

string.replace(“abc”, “def”)

Answer 10

first parameter is substring you want to replace, second parameter is what you want to replace substring with.

Question 11

string.replaceAll(“be”, “code”)

Answer 11

Replace all occurrences of “be” by “for”