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使用变量值读取常量值

ecmascript-6 react-native javascript

0

rahim asgari · 技术社区 · 7 年前

const tabIcon1 = require("../../../assets/tab/001.png");
const tabIcon2 = require("../../../assets/tab/002.png");
const tabIcon3 = require("../../../assets/tab/003.png");
const tabIcon4 = require("../../../assets/tab/004.png");
const tabIcon5 = require("../../../assets/tab/005.png");

我动态地创建这些常量的名称,如下所示:

let icon = 'tabIcon'+id;

我如何使用 icon 变量来访问常量的值?

1 回复 | 直到 7 年前

1

Suraj Malviya 7 年前

您应该创建一个图标对象,如下所示:

const tabIcon1 = require("../../../assets/tab/001.png");
const tabIcon2 = require("../../../assets/tab/002.png");
const tabIcon3 = require("../../../assets/tab/003.png");
const tabIcon4 = require("../../../assets/tab/004.png");
const tabIcon5 = require("../../../assets/tab/005.png");

const icon = {
  tabIcon1,
  tabIcon2,
  tabIcon3,
  tabIcon4,
  tabIcon5
};

icon.tabIcon1 , icon.tabIcon2 等等