javascript - 用于 jQuery append 的 JavaScript 代码串联

Question

在以下代码中，需要进行一些串联以将所有行放入 PlayersDetail 变量中，以便可以 append 名为 PlayersList 的 div。

var onlineStatus="online";
PlayersDetail='Here is some text before if statement.<br>'
if (onlineStatus==="online"){
   'I am online.<br>'
}
'here is some text after if statement.'
$("#PlayersList").append(PlayersDetail);

Answer 1

您需要使用串联运算符

var onlineStatus = "online";

PlayersDetail = 'Here is some text before if statement.<br>'
if (onlineStatus === "online") {
    //use concatenation operators
    PlayersDetail += 'I am online.<br>'
    //same as 
   // PlayersDetail = PlayersDetail + 'I am online.<br>'
}
//use concatenation operators
PlayersDetail += 'here is some text after if statement.'

$("#PlayersList").append(PlayersDetail);