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Exam 8: Manipulating Data in Strings and Arrays

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Question 21

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Match each statement below with correct item:

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Compares strings according to the particular sort order of a language or country

join()

Text contained within double or single quotation marks

localeCompare()method

A standardized set of characters from many of the world's languages

metacharacter

Metacharacter that specifies the quantity of a match

pop()

Special character that defines pattern matching rules in a regular expression

|

Separates alternate sets of substrings in a regular expression

parse()

Adds one or more elements to the end of an array

Unicode

Removes the last element from the end of an array

string

Converts a JSON string value to an object

push()

Combines array elements into a string

quantifier

Premises

Compares strings according to the particular sort order of a language or country

Text contained within double or single quotation marks

A standardized set of characters from many of the world's languages

Metacharacter that specifies the quantity of a match

Special character that defines pattern matching rules in a regular expression

Separates alternate sets of substrings in a regular expression

Adds one or more elements to the end of an array

Removes the last element from the end of an array

Converts a JSON string value to an object

Combines array elements into a string

Responses

join()

localeCompare()method

metacharacter

pop()

|

parse()

Unicode

string

push()

quantifier

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Correct Answer

Premises

Responses

Compares strings according to the particular sort order of a language or country

Text contained within double or single quotation marks

A standardized set of characters from many of the world's languages

Metacharacter that specifies the quantity of a match

Special character that defines pattern matching rules in a regular expression

Separates alternate sets of substrings in a regular expression

Adds one or more elements to the end of an array

Removes the last element from the end of an array

Converts a JSON string value to an object

Combines array elements into a string

Premises

Compares strings according to the particular sort order of a language or country

Text contained within double or single quotation marks

A standardized set of characters from many of the world's languages

Metacharacter that specifies the quantity of a match

Special character that defines pattern matching rules in a regular expression

Separates alternate sets of substrings in a regular expression

Adds one or more elements to the end of an array

Removes the last element from the end of an array

Converts a JSON string value to an object

Combines array elements into a string

Responses

Question 22

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What is the primary difference between the search()method and the indexOf()method?

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The  search( method returns the position...

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Question 23

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What are the toString()and toLocaleString()methods used for, and what is the difference between them?

The ____ method adds one or more elements to the end of an array.

You use ____ classes in regular expressions to treat multiple characters as a single item.

The ____ method converts a text string to lowercase.

To convert a JavaScript object to a JSON string, you use the ____ method.

To convert a JSON string to a JavaScript object, you use the parse()method of the JSON object.

List and describe three metacharacters that you can use with JavaScript regular expressions.

The fromCharCode() method is called a ____ method because it is not used as a method of any string objects (which can be literal strings or variables) in your scripts.

Regular expression patterns in JavaScript must begin and end with backward slashes.

Characters contained in a set of parentheses within a regular expression are referred to as a subexpression or ____.

A pattern that matches the beginning or end of a line is called a(n) ____.

The length property counts escape sequences such as \n as two characters.

The ____ method converts a text string to uppercase.

You can use a text string as a literal value or assign it to a variable.

Explain how to change the case of a variable's valueusing the toLowerCase() or toUpperCase()method.

The ____________________ method of the String class creates a new string with the first instance of a specified pattern replaced with the value of the text argument.

To sort elements of an array alphabetically, you use the ____ method.

All literal strings and string variables in JavaScript are represented by a(n)____________________ class, which contains methods for manipulating text strings.