1.7 KiB
id | title | challengeType | videoUrl | forumTopicId | dashedName |
---|---|---|---|---|---|
56533eb9ac21ba0edf2244b8 | Concatenating Strings with the Plus Equals Operator | 1 | https://scrimba.com/c/cbQmmC4 | 16803 | concatenating-strings-with-the-plus-equals-operator |
--description--
We can also use the +=
operator to concatenate a string onto the end of an existing string variable. This can be very helpful to break a long string over several lines.
Note: Watch out for spaces. Concatenation does not add spaces between concatenated strings, so you'll need to add them yourself.
Example:
var ourStr = "I come first. ";
ourStr += "I come second.";
ourStr
now has a value of the string I come first. I come second.
.
--instructions--
Build myStr
over several lines by concatenating these two strings: This is the first sentence.
and This is the second sentence.
using the +=
operator. Use the +=
operator similar to how it is shown in the editor. Start by assigning the first string to myStr
, then add on the second string.
--hints--
myStr
should have a value of the string This is the first sentence. This is the second sentence.
assert(myStr === 'This is the first sentence. This is the second sentence.');
You should use the +=
operator to build myStr
.
assert(code.match(/myStr\s*\+=\s*(["']).*\1/g));
--seed--
--after-user-code--
(function(){
if(typeof myStr === 'string') {
return 'myStr = "' + myStr + '"';
} else {
return 'myStr is not a string';
}
})();
--seed-contents--
// Only change code below this line
var myStr;
--solutions--
var myStr = "This is the first sentence. ";
myStr += "This is the second sentence.";