var GAME1NUM = "";
if (json.participantIdentities[0].player.summonerName == ACTUALNAME) {
var GAME1NUM = 0;
} else if (json.participantIdentities[1].player.summonerName == ACTUALNAME) {
var GAME1NUM = 1;
} else if (json.participantIdentities[2].player.summonerName == ACTUALNAME) {
var GAME1NUM = 2;
} else if (json.participantIdentities[3].player.summonerName == ACTUALNAME) {
var GAME1NUM = 3;
} else if (json.participantIdentities[4].player.summonerName == ACTUALNAME) {
var GAME1NUM = 4;
} else if (json.participantIdentities[5].player.summonerName == ACTUALNAME) {
var GAME1NUM = 5;
} else if (json.participantIdentities[6].player.summonerName == ACTUALNAME) {
var GAME1NUM = 6;
} else if (json.participantIdentities[7].player.summonerName == ACTUALNAME) {
var GAME1NUM = 7;
} else if (json.participantIdentities[8].player.summonerName == ACTUALNAME) {
var GAME1NUM = 8;
} else if (json.participantIdentities[9].player.summonerName == ACTUALNAME) {
var GAME1NUM = 9;
}
需要帮助简化代码感觉重复
真的请帮忙,如果你不好,但是如果你可以请男人请
答案 0 :(得分:2)
使用ES6中的Array#findIndex
:
var GAME1NUM = json.participantIdentities.findIndex(function(val) {
return val.player.summonerName === ACTUALNAME;
});
如果您需要更多浏览器兼容性,请使用polyfill。
答案 1 :(得分:0)
也许是这样的:
var json = {
name1 : "name1",
name2 : "name2"
}
function getName(summonerName){
return {
name1 : 1,
name2 : 2
}[summonerName]
}
var GAME1NUM = getName(json.name1);
console.log(GAME1NUM);

您创建一个返回对象的函数,您可以使用括号表示法访问对象属性的值。
要在对象中检查的属性作为参数传递给函数。
如果您使用JSON。记得做JSON.parse()
答案 2 :(得分:0)
您可以通过以下方式简化逻辑:
工作演示:
var json = {
participantIdentities: [
{"player":{"summonerName":"ACTUALNAME"}},
{"player":{"summonerName":"ACTUALNAME"}},
{"player":{"summonerName":"ACTUALNAME"}},
{"player":{"summonerName":"ACTUALNAME"}},
{"player":{"summonerName":"ACTUALNAME"}}
]
};
var GAME1NUM = 0;
for (var i in json.participantIdentities) {
if(json.participantIdentities[i].player.summonerName == 'ACTUALNAME') {
GAME1NUM += 1;
}
}
console.log(GAME1NUM);

答案 3 :(得分:0)
这是实现它的最简单方法,无需更改源数组
var GAME1NUM = "";
for(var i=0;i<json.participantIdentities.length;i++) {
if (json.participantIdentities[i].player.summonerName == ACTUALNAME) {
GAME1NUM = i;
break;
}
}