javascript - 如何选择字符串的最后两个字符

Question

我需要从变量中选择最后两个字符，无论是数字还是字母。

例如:

var member = "my name is Mate";

我想显示 member 变量中字符串的最后两个字母。

Answer 1

您可以将负索引传递给 .slice() .这将表示与集合末尾的偏移量。

var member = "my name is Mate";

var last2 = member.slice(-2);

alert(last2); // "te"