Javascript 如何在ts中为数组中的对象动态设置值

你错过了一个[我]

让我们=[ {'firstName'：iroman， 'lastName'：k}， {'firstName'：蚂蚁， “lastName”：k} ] 设b=[] 让co=[] forlet i=0；i你应该使用：

[{"firstName":"hulk","lastName":"k"},{"firstName":"hulk","lastName":"k"}]

Actual output-
[{"firstName":"iroman","lastName":"k"},{"firstName":"antman","lastName":"k"}]:

你应该做[i]['firstname']

[{"firstName":"hulk","lastName":"k"},{"firstName":"hulk","lastName":"k"}]

Actual output-
[{"firstName":"iroman","lastName":"k"},{"firstName":"antman","lastName":"k"}]:

a[i]['firstName']='hulk';