[英]JavaScript es6 call static function from another class
這是帶有靜態函數的類
import alt from '../alt';
import Parse from 'parse';
import { ElementTypes } from '../constants/ElementTypes';
class BoardActions {
static getDefaultElement(x, y) {
var Element = Parse.Object.extend("Element");
var element = new Element();
element.set("x", x);
element.set("y", y);
return element;
}
}
export default alt.createActions(BoardActions);
這就是調用靜態函數const startElement = BoardActions.getDefaultElement(0, 3);
import alt from '../alt';
import Parse from 'parse';
import { ElementTypes } from '../constants/ElementTypes';
import BoardActions from './BoardActions';
class ProjectActions {
createNewProject(name) {
return (dispatch) => {
dispatch();
const Project = Parse.Object.extend("Project");
const project = new Project();
let projectObject = null;
project.set('name', name);
project.save().then((object) => {
projectObject = object;
const startElement = BoardActions.getDefaultElement(0, 3);
startElement.set('type', ElementTypes.StartType);
startElement.set('root', true);
startElement.set('projectId', object.id);
return startElement.save();
}).then((object) => {
this.newProjectCreated(projectObject);
}, (error) => {
this.parseError(error);
});
}
}
}
export default alt.createActions(ProjectActions);
我收到此錯誤:
ProjectActions.js:69 Uncaught TypeError: _BoardActions2.default.getDefaultElement is not a function
怎么了?
編輯:我使用 babel 作為轉譯器。
"babel-core": "^6.5.1",
"babel-loader": "^6.2.2",
"babel-preset-es2015": "^6.5.0",
"babel-preset-react": "^6.5.0",
"babel-preset-react-hmre": "^1.1.0",
"babel-preset-survivejs-kanban": "^0.3.3",
編輯(因為你編輯了你的問題):
在您要導入的第二個文件中
import BoardActions from './BoardActions';
這是從“./BoardActions”導入默認值。
查看第一個文件,您正在導出函數的結果而不是類本身。
export default alt.createActions(BoardActions);
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