<commit_before>### Split

#### index.js
```javascript
// Split by lines
var lines = text.split(/\r?\n/);
```

### Simple methods
```javascript
// Substring
myString.substring(initialIndex, finalIndex);
myString.substr(initialIndex, numChars);

// Remove space from begin and end
myString.trim();
```
<commit_msg>Notes: Javascript string manipulation add comment<commit_after>### Split

#### index.js
```javascript
// Split by lines
var lines = text.split(/\r?\n/);
```

### Simple methods
```javascript
// Substring
myString.substring(initialIndex, finalIndex); // Last parameter optional
myString.substr(initialIndex, numChars); // Last parameter optional

// Remove space from begin and end
myString.trim();
```

{'fraction_non_alphanumeric': 0.1638655462184874, 'fraction_numerical': 0.0, 'mean_word_length': 4.958333333333333, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '491563', 'n_tokens_mistral': 223, 'n_tokens_neox': 204, 'n_words': 61}