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This article mainly introduces how to achieve a js without map array mapping, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

Mapping array without map ()

Let's first introduce the map method. The map () method returns a new array in which the elements are the values of the original array elements after calling the function, and it processes the elements in turn in the order of the original array elements. Note: map () does not change the original array, nor does it detect empty arrays.

Let's implement an array mapping without map:

/ array.map (function (currentValue,index,arr), thisValue) var plants = [{name: "Saturn"}, {name: "Uranus"}, {name: "Mercury"}, {name: "Venus"},] var plantsName = Array.from (plants, ({name}) = > name); console.log (plantsName) / / ['Saturn',' Uranus', 'Mercury',' Venus'] Thank you for reading this article carefully. I hope the article "how to achieve an array mapping without map" shared by the editor will be helpful to everyone. At the same time, I also hope that you will support and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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