Use the at() method to return an element of an array by an index. · The at() method with a negative index will return an element from the end of the array. ... <看更多>

Now supported in all browsers, the JavaScript Array.prototype. at method lets you target elements at the beginning or the end of an array. ... <看更多>

Find the index of the array element you want to remove using indexOf , and then remove that index with splice . The splice() method changes the contents of ... ... <看更多>

There is a new method being added for Array: at https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/at I ... ... <看更多>

from () method converts an array-like object to a true array. It takes an optional second parameter, which can be used to execute a map function on each element ... ... <看更多>