The reason you're seeing this behavior is that this within the each call is a String object instance, not a string primitive. JavaScript has ... ... <看更多>

The switch statement is a flow-control statement that is similar to the if else statement. You use the switch statement to control the complex conditional ... ... <看更多>

Starting with JavaScript 1.2, you can use a switch statement which handles exactly this situation, and it does ... ... <看更多>

yortus commented on Sep 9, 2016. In JavaScript (and hence TypeScript), case clauses don't take comma- ... ... <看更多>

First, the switch...case statement evaluates the expression . Then, it searches for the first case clause whose expression evaluates to the same value as the ... ... <看更多>