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# `mode()`
The mode method returns the mode value of a given key:
```js
collect([1, 3, 3, 6, 7, 8, 9]).mode();
// [3]
```
```js
collect([
{
foo: 1,
},
{
foo: 1,
},
{
foo: 2,
},
{
foo: 4,
},
]).mode('foo');
// [1]
```
[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/mode.js)