Add CSVtoArray

snippets/CSVToArray.md

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+### CSVToArray
+
+Converts a comma-separated values (CSV) string to a 2D array.
+
+Use `Array.slice()` and `Array.indexOf('\n')` to remove the first row (title row) if `omitFirstRow` is `true`.
+Use `String.split('\n')` to create a string for each row, then `String.split(delimiter)` to separate the values in each row.
+Omit the second argument, `delimiter`, to use a default delimiter of `,`.
+Omit the third argument, `omitFirstRow`, to include the first row (title row) of the CSV string.
+
+```js
+const CSVToArray = (data, delimiter = ',', omitFirstRow = false) =>
+  data.slice(omitFirstRow ? data.indexOf('\n')+1 : 0).split('\n').map(v => v.split(delimiter));
+```
+
+```js
+CSVToArray('a,b\nc,d'); // [['a','b'],['c','d']];
+CSVToArray('a;b\nc;d', ';'); // [['a','b'],['c','d']];
+CSVToArray('col1,col2\na,b\nc,d', ',', true); // [['a','b'],['c','d']];
+```