在ExtJ中将本地变量归为全局

Question

如何使局部变量成为全局？

Ext.define('A.view.Management', {
extend: 'Ext.container.Container',
requires: [
    'A.store.Management',
],
border: false,
chart: null,
hrer: [],   
initComponent: function () {
    var me = this;
    me.jobStore2 = Ext.create('O2a.store.Management');

    Ext.Ajax.request({
        url: utils.createUrl('api', 'ard-read'),
        async: true,
        callback: function(opts, success, response) {
            try {
                if (success) {
                    var output = App.decodeHttpResp(response.responseText);
                    const data = output.data;
                    let myArr = [];
                    data.map((date) => 
                    myArr = Object.keys(date).filter(key => key != 'DATE'));
                    me.hrer =myArr;
                    console.log(me.hrer);
                    if (output.success) {
                        //return output.success;
                    } else {
                        //return output.error;
                    }
                } else {
                    //return 'Unknown Reason';
                }
            } catch (ex) {
                //return ex;
            }
        }
    });
console.log(me.hrer);

我想将HRER数组带到外面。当我在Ajax请求之外进行安装时，我会得到一个空数组，我将其定义为全球。我无法将进入AJAX请求的值传递给外部

Answer 1

在Extjs 4中，我们曾经做过：

Ext.define('A.store.SharedData', { 
    singleton: true, 
    foo: 'bar', 
    johnDoeAge: 42,
    hrer: []
}); 

然后需要在要使用的任何组件中，都需要它：

Ext.define('A.view.Management', {
    extend: 'Ext.container.Container',
    requires: [
        'A.store.Management',
        'A.store.SharedData'
    ],


    initComponent: function () {
        var me = this;
        A.store.SharedData.hrer = [1, 2, ...];
        ...
    }
    ...
});