freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/escape-sequences-in-strings.md

id, title, challengeType, videoUrl, forumTopicId, dashedName

id	title	challengeType	videoUrl	forumTopicId	dashedName
56533eb9ac21ba0edf2244b6	Escape Sequences in Strings	1	https://scrimba.com/c/cvmqRh6	17567	escape-sequences-in-strings

--description--

Quotes are not the only characters that can be escaped inside a string. There are two reasons to use escaping characters:

1. To allow you to use characters you may not otherwise be able to type out, such as a carriage return.
2. To allow you to represent multiple quotes in a string without JavaScript misinterpreting what you mean.

We learned this in the previous challenge.

Code	Output
\'	single quote
\"	double quote
\\	backslash
\n	newline
\r	carriage return
\t	tab
\b	word boundary
\f	form feed

Note that the backslash itself must be escaped in order to display as a backslash.

--instructions--

Assign the following three lines of text into the single variable myStr using escape sequences.

FirstLine
    \SecondLine
ThirdLine

You will need to use escape sequences to insert special characters correctly. You will also need to follow the spacing as it looks above, with no spaces between escape sequences or words.

Here is the text with the escape sequences written out.

"FirstLinenewlinetabbackslashSecondLinenewlineThirdLine"

--hints--

myStr should not contain any spaces

assert(!/ /.test(myStr));

myStr should contain the strings FirstLine, SecondLine and ThirdLine (remember case sensitivity)

assert(
  /FirstLine/.test(myStr) && /SecondLine/.test(myStr) && /ThirdLine/.test(myStr)
);

FirstLine should be followed by the newline character \n

assert(/FirstLine\n/.test(myStr));

myStr should contain a tab character \t which follows a newline character

assert(/\n\t/.test(myStr));

SecondLine should be preceded by the backslash character \

assert(/\\SecondLine/.test(myStr));

There should be a newline character between SecondLine and ThirdLine

assert(/SecondLine\nThirdLine/.test(myStr));

myStr should only contain characters shown in the instructions

assert(myStr === 'FirstLine\n\t\\SecondLine\nThirdLine');

--seed--

--after-user-code--

(function(){
if (myStr !== undefined){
console.log('myStr:\n' + myStr);}})();

--seed-contents--

var myStr; // Change this line

--solutions--

var myStr = "FirstLine\n\t\\SecondLine\nThirdLine";