在fabric.js中旋转群组时,群组的.left和.top值会跳跃。这是fabric.js的错误,还是可以解释/有意的?
group.on "moving", ->
#Yields values of about 100 px, also after the group was rotated
group.on "rotating", ->
#Yields values of about 130 px
JSFiddle ->
我正在开发新的角度项目,其中包含有关电影的信息。在创建新的不同日期时,我的movie.service.ts中有一个。
这是我的错误
ERROR TypeError: Cannot read property 'year' of undefined
at new MovieService (movie.service.ts:17)
at core.js:1461
at _callFactory (core.js:8223)
at _createProviderInstance (core.js:8181)
at resolveNgModul
有一件特别的事情我时常想做,我无法弄清楚:
假设module1.js导出3个值:
//module1.js
export const a = 'a';
export const b = 'b';
export const c = 'c';
然后,在module2.js中,我想将其中的两个导入到一个对象中(作为一种命名空间):
//module2.js
import { a, c } as constants from './module1'; //<-WRONG!
所以我最后做的是这样的事情:
//module2.js
有两个文件: 1)app.js和2) browser.html。app.js只是在一个node-js本地存储中存储一个值,而browser.html应该会提醒这一点。但是browser.html会提示“空”。我的JavaScript代码:
var LocalStorage = require('node-localstorage').LocalStorage;
localStorage = new LocalStorage('./scratch');
var a="salam";
global.a=a;
localStor
如何将属性设置为应解析的值。就像这个..。
const getDataFromServer = (id) => ({id: * 2})
R.set(payloadProp, getDataFromServer)({id: 4}); // WRONG, is setting to a function instend to resolve a function with `{id: 4}`
const fetch = (id) => {
return { num: id * 2 }
};
const idProp = R.lensProp('id');
c
在Angular 4应用程序中运行fabric.js会在开发和生产环境中产生以下警告。
./node_modules/fabric/dist/fabric.js
25971:14-42 Critical dependency: the request of a dependency is an
expression
你知道为什么会发生这种情况吗?
谢谢
我正在运行一个简单的测试,我得到了一个奇怪的行为,这是js代码:
var handler = function(index,params){
params.id = index;
}
function test(){
var params = {'id':0};
console.log(params);
gradualRepetitionCalls(0,10,params);
}
function gradualRepetitionCalls(index, maxIndex,params)
{
if (index <
我试着用内联的方式写下这个javascript函数:
function WhichKeyPress(e) {
if (!e) {
//if the browser did not pass the event
//information to the function,
//we will have to obtain it from the
//event register
if (window.event) {
//Internet Explorer
e = window.event;
} else {
//
选择要素后,我会尝试更改VectorTile图层中要素的样式。然而,当select交互第一次被触发时,控制台报告一个错误:
Uncaught TypeError: feature.getId is not a function
at ol.source.Vector.addToIndex_ (ol-debug.js:66819)
at ol.source.Vector.addFeatureInternal (ol-debug.js:66772)
at ol.source.Vector.addFeature (ol-debug.js:66759)
at ol.source.Vector.<
com.qcloud.cos.exception.CosClientException: Unable to decrypt symmetric key from object metadata
at com.qcloud.cos.internal.crypto.ContentCryptoMaterial.cek(ContentCryptoMaterial.java:205)
at com.qcloud.cos.internal.crypto.ContentCryptoMaterial.fromObjectMetadata0(ContentCryptoMaterial.jav