immutable.js之Immutable.js-是否可以将元素插入列表中的任意位置

如何在Immutable.js列表的任意位置插入元素？

请您参考如下方法:

您正在寻找 splice method:

Splice returns a new indexed Iterable by replacing a region of this Iterable with new values.

splice(index: number, removeNum: number, ...values: any[])

var list = Immutable.List([1,2,3,4]); 
console.log(list.toJS()); //[1, 2, 3, 4] 
var inserted = list.splice(2,0,100); 
console.log(list.toJS()); //[1, 2, 3, 4] 
console.log(inserted.toJS()); //[1, 2, 100, 3, 4]