Update and rename truncateAtSpace.md to truncateStringAtWhitespace.md

snippets/truncateAtSpace.md

@@ -1,21 +0,0 @@
----
-title: truncateAtSpace
-tags: string,beginner
----
-
-Truncates a string up to the nearest space before a specified length.
-
-- Checks if there string can be truncated
-- Calculates the nearest space before or at the strings set limit.
-- Appends a configurable ending (defaulting to `'...'`) to the truncated string.
-
-```js
-const truncateAtSpace = (string, characterLimit, ending = '...') => {
-  const lastSpace = string.slice(0, characterLimit + 1).lastIndexOf(' ');
-  return (string.length <= characterLimit) ? string : (lastSpace > 0) ? string.slice(0, lastSpace) + ending : ending;
-}
-```
-
-```js
-truncateAtSpace('This is a long excerpt that is far too long.', 25, '...'); // This is a long excerpt...
-```

snippets/truncateStringAtWhitespace.md

@@ -0,0 +1,26 @@
+---
+title: truncateStringAtWhitespace
+tags: string,intermediate
+---
+
+Truncates a string up to specified length, respecting whitespace when possible.
+
+- Determine if the string's `length` is greater or equal to `lim`. If not, return it as-is.
+- Use `String.prototype.slice()` and `String.prototype.lastIndexOf()` to find the index of the last space below the desired `lim`.
+- Use `String.prototype.slice()` to appropriately truncate `str` based on `lastSpace`, respecting whitespace if possible and appending `ending` at the end.
+- Omit the third argument, `ending`, to use the default ending of `'...'`.
+
+```js
+const truncateStringAtWhitespace = (str, lim, ending = '...') => {
+  if (str.length <= lim) return str;
+  const lastSpace = str.slice(0, lim - ending.length + 1).lastIndexOf(' ');
+  return str.slice(0, lastSpace > 0 ? lastSpace : lim - ending.length) + ending;
+};
+```
+
+```js
+truncateStringAtWhitespace('short', 10); // 'short'
+truncateStringAtWhitespace('not so short', 10); // 'not so...'
+truncateStringAtWhitespace('trying a thing', 10); // 'trying...'
+truncateStringAtWhitespace('javascripting', 10); // 'javascr...'
+```