我尝试在字符串中与数组中的一组“filter”单词匹配的任何单词前面添加一个#。
This is what I have so far
let wordsArray = ['she', 'smile'];
let sentence = 'She has a big smile';
let sentenceArray = sentence.split(" ");
wordsArray.forEach((i, vals) => {
sentenceArray.forEach((j, sVal) => {
我正在尝试用nodejs迭代json对象,结果是一个真正的挑战。
> var fs = require('fs');
> var meta = JSON.parse(fs.readFileSync('path_to_file'));
> typeof meta
'object'
> for ( k in meta) console.log(k);
key1
key2
> meta.map(function(v,k) { console.log(k +'=' + v); })
TypeError: O
你好,我递归地枚举一个tree值,虽然树中的一些nodes是undefined,但我已经设置了保护,这样它就不会fail.Even,所以当map-ing children节点时,我得到了错误:
带有误差的输出
Adrian has children:Marian,Dan,
Dan is leaf
Marian has children:Liviu,Farcas,
t.ngfactory.js?
[sm]:1 ERROR TypeError: Cannot read property 'logRecursive' of undefined
我在基于主题的本地化工作。为此,我在每个本地化的body标签上都有类。为了更好地理解,我需要更改基于该类的所有变量值
$a: #000;
$b= Arial;
if body has class Australia then
$a: #ff0000;
$b: 'Roboto';
请不要使用js代码,仅供scss使用
我的MapComponent在html中使用ControlButtonsComponent,并将openlayers中的Map与@Input绑定到ControlButtons中。这给了我一个错误: core.js:5980 ERROR Error: NG0100: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value: 'undefined'. Current value: '[object Object]'
我正在编写一个组件,它接受一个@Input参数,并将其显示在错误下面的html位中。
SuggestionsComponent.html:54 ERROR Error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value: 'undefined'. Current value: '<p>so string value</p>
'.
at viewDebugError (cor
有人能帮我调试我的代码吗?我已经做了好几天了,我就是不能让它开始工作。似乎不适用于我的应用程序。
index.html:
<link rel="manifest" href="manifest.json">
<!-- un-comment this code to enable service worker
<script>
if ('serviceWorker' in navigator) {
navigator.serviceWorker.register('service-worker.j
我有一个js变量,类似于:
var mylist =[ {item:'emp',pos:1},{age: 21,name:'AA'},{age: 22,name:'BB'},,. ];
在我的js脚本中,我读到
var out = (mylist[0].map(function(i, j){return i.age}))
total = out.length // this has 3 --> ['', '21', '22']
我如何过滤掉列表中的元素,并返回带有age关键字的元素,
我要用下一个JS。我已经创建了一个侧栏,并在其中添加了自定义手风琴(我已经将手风琴组件命名为SideAccord.js)。我在数组中循环数据。我已经分配了密钥,但是我仍然得到了这个错误:
Warning: Each child in a list should have a unique "key" prop.
Check the render method of SideAccord. See https://reactjs.org/link/warning-keys for more information.
at SideAccord (webpack-internal
对于http请求,我不能使用我的函数(在服务中),但是如果我在组件中直接使用我的函数,它就能工作。我使用一个返回JSON的PHP文件。
我收到这个错误
"Uncaught (in promise): TypeError: Cannot set property stack of [object Object] which has only a getter
TypeError: Cannot set property stack of [object Object] which has only a getter
at assignAll (http://localhost:4200/
window.initMap=function() {
var options = {
zoom: 3,
center: {lat: -28.024, lng: 140.887}
}
var ourmap = new google.maps.Map(document.getElementById('map'),options);
// Add some markers to the map.
// Note: The code uses the JavaScript Array.prototype.map() method to
// create an array
我的错误与backbone.js 'undefined' is not an object (evaluating '_.each')有关,它指向第227行,它在我的test.js脚本中,该脚本是由browserify编译的。
这一行是backbone中的内置块,因此实际问题显然不能在这一行中。
所以我的设置..。我在这里测试一个简单的模块,它在./client/src/views/内部。
// intro.js
var Backbone = require('backbone');
module.exports = IntroView =
当我使用npm run start运行服务器时,我会得到以下错误:
✖ 「wds」: Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.
- configuration has an unknown property 'debug'. These properties are valid:
object { amd?, bail?, cache?, context?, de
这是我的初始定义,所有函数都在server.js one文件中
var HashMap = require('hashmap');
global.user_to_Socket_Map = new HashMap();
global.socket_to_user_Map = new HashMap();
function makeOnline(username,socket)
{
socket.emit("test","hi");
if(global.user_to_Socket_Map.has(username) !=
我试图为我的项目设置实习生,一个Dojo/JS项目,而服务器不是节点.我遇到了一个加载程序问题,这似乎是由于dojo.has使用dojo.has.中建议的要求包装器对我不起作用。
我得到的错误如下:
> node node_modules/intern/client.js config=tests/intern
Defaulting to "console" reporter
dojo/text plugin failed to load because loader does not support getText
TypeError: undefined is not
我有一个js2d数组
var a = [["a","b","c","d","e","f"]]
我需要丢弃最后一个并插入第一个位置
var result = [["new","a","b","c","d","e"]] //<------ "f" has to be discarded
我试过了
a.unshift("new")
我该怎么做呢?
当我的用户在我的web应用程序上输入玩家的伪代码时,我会使用easy-autocomplete来添加建议。
但它不起作用。
这是我得到的信息:
people.js:7 Uncaught TypeError: $input.easyAutocomplete is not a function
at HTMLDocument.<anonymous> (people.js:7)
at Object../node_modules/turbolinks/dist/turbolinks.js.e.dispatch (turbolinks.js:75)
at r.noti
client.on("roleCreate", role => {
const channel = role.guild.channels.cache.find(ch => ch.name === "welcome");
const embed = new Discord.MessageEmbed()
.setColor("DEFAULT")
.setDescription(`A new role has been created\nPermissions List: ${role.permissions}`