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This article will explain in detail how js uses the lastIndexOf () method. 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.

LastIndexOf () method

LastIndexOf () can help us find the index of the last occurrence of the element.

/ array.reduce (function (total, currentValue, currentIndex, arr), initialValue) var nums = [1,2,3,4,5]; var sum = nums.reduce ((x, y) = > x + y); console.log (sum) / / 15 this is the end of the article on "how js uses the lastIndexOf () method". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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