How to use fill () in ES6

This article will explain in detail how to use fill () in ES6. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Fill ()

The fill () method populates an array with the given value.

['await,' baked,'c'] .fill (7) / / [7,7,7] new Array (3) .fill (7) / / [7,7,7] ['await,' baked,'c'] .fill (7, 1, 2) / / ['await, 7,' c']

The above code shows that the fill method is very convenient for initializing empty arrays. All existing elements in the array will be erased.

The fill () method can also accept the second and third parameters, which specify the start and end positions of the fill.

Fill (7, 1, 2) / / ['await, 7,' c'] this article on how to use fill () in ES6 ends here. I hope the above content can be of some help to you, so that you can learn more knowledge. If you think the article is good, please share it for more people to see.