Prepare repository for merge

javascript/snippets/yes-no.md

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+---
+title: Check yes/no string
+type: snippet
+tags: [string,regexp]
+unlisted: true
+cover: mask-quiet
+dateModified: 2021-01-04T13:04:15+02:00
+---
+
+Returns `true` if the string is `'y'`/`'yes'` or `false` if the string is `'n'`/`'no'`.
+
+- Use `RegExp.prototype.test()` to check if the string evaluates to `'y'`/`'yes'` or `'n'`/`'no'`.
+- Omit the second argument, `def` to set the default answer as `'no'`.
+
+```js
+const yesNo = (val, def = false) =>
+  /^(y|yes)$/i.test(val) ? true : /^(n|no)$/i.test(val) ? false : def;
+```
+
+```js
+yesNo('Y'); // true
+yesNo('yes'); // true
+yesNo('No'); // false
+yesNo('Foo', true); // true
+```