diff --git a/snippets/URLJoin.md b/snippets/URLJoin.md
index 18af73caf..d923db122 100644
--- a/snippets/URLJoin.md
+++ b/snippets/URLJoin.md
@@ -9,7 +9,7 @@ lastUpdated: 2020-10-22T20:24:44+03:00
 
 Joins all given URL segments together, then normalizes the resulting URL.
 
-- Use `String.prototype.join()` to combine URL segments.
+- Use `Array.prototype.join()` to combine URL segments.
 - Use a series of `String.prototype.replace()` calls with various regular expressions to normalize the resulting URL (remove double slashes, add proper slashes for protocol, remove slashes before parameters, combine parameters with `'&'` and normalize first parameter delimiter).
 
 ```js
diff --git a/snippets/formatDuration.md b/snippets/formatDuration.md
index 5bb7e6aa7..4845467f5 100644
--- a/snippets/formatDuration.md
+++ b/snippets/formatDuration.md
@@ -12,7 +12,7 @@ Returns the human-readable format of the given number of milliseconds.
 - Divide `ms` with the appropriate values to obtain the appropriate values for `day`, `hour`, `minute`, `second` and `millisecond`.
 - Use `Object.entries()` with `Array.prototype.filter()` to keep only non-zero values.
 - Use `Array.prototype.map()` to create the string for each value, pluralizing appropriately.
-- Use `String.prototype.join()` to combine the values into a string.
+- Use `Array.prototype.join()` to combine the values into a string.
 
 ```js
 const formatDuration = ms => {
diff --git a/snippets/formatSeconds.md b/snippets/formatSeconds.md
index b18da0e53..cdf2a0c2a 100644
--- a/snippets/formatSeconds.md
+++ b/snippets/formatSeconds.md
@@ -12,7 +12,7 @@ Returns the ISO format of the given number of seconds.
 - Divide `s` with the appropriate values to obtain the appropriate values for `hour`, `minute` and `second`.
 - Store the `sign` in a variable to prepend it to the result.
 - Use `Array.prototype.map()` in combination with `Math.floor()` and `String.prototype.padStart()` to stringify and format each segment.
-- Use `String.prototype.join()` to combine the values into a string.
+- Use `Array.prototype.join()` to combine the values into a string.
 
 ```js
 const formatSeconds = s => {
diff --git a/snippets/reverseNumber.md b/snippets/reverseNumber.md
index d28853531..db79df053 100644
--- a/snippets/reverseNumber.md
+++ b/snippets/reverseNumber.md
@@ -10,7 +10,7 @@ lastUpdated: 2020-09-18T21:19:23+03:00
 Reverses a number.
 
 - Use `Object.prototype.toString()` to convert `n` to a string.
-- Use `String.prototype.split()`, `Array.prototype.reverse()` and `String.prototype.join()` to get the reversed value of `n` as a string.
+- Use `String.prototype.split()`, `Array.prototype.reverse()` and `Array.prototype.join()` to get the reversed value of `n` as a string.
 - Use `parseFloat()` to convert the string to a number and `Math.sign()` to preserve its sign.
 
 ```js
diff --git a/snippets/reverseString.md b/snippets/reverseString.md
index 4718c7fa6..bc42d46c1 100644
--- a/snippets/reverseString.md
+++ b/snippets/reverseString.md
@@ -10,7 +10,7 @@ lastUpdated: 2020-10-18T14:58:09+03:00
 Reverses a string.
 
 - Use the spread operator (`...`) and `Array.prototype.reverse()` to reverse the order of the characters in the string.
-- Combine characters to get a string using `String.prototype.join()`.
+- Combine characters to get a string using `Array.prototype.join()`.
 
 ```js
 const reverseString = str => [...str].reverse().join('');
diff --git a/snippets/sortCharactersInString.md b/snippets/sortCharactersInString.md
index ad8d8b08d..403a3712c 100644
--- a/snippets/sortCharactersInString.md
+++ b/snippets/sortCharactersInString.md
@@ -10,7 +10,7 @@ lastUpdated: 2020-10-22T20:24:30+03:00
 Alphabetically sorts the characters in a string.
 
 - Use the spread operator (`...`), `Array.prototype.sort()` and  `String.prototype.localeCompare()` to sort the characters in `str`.
-- Recombine using `String.prototype.join()`.
+- Recombine using `Array.prototype.join()`.
 
 ```js
 const sortCharactersInString = str =>