我有一段150个姓和名。我想用数组中的逗号分隔每个全名。我该怎么做?这是我所拥有的。请告诉我如何在每个全名后面加上逗号。
var names= $('#namesList').html();
var nameArr = names.split(' ');
//join comma after each full name
console.log(nameArr);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></
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?
我试图删除一个角度的列表,但它给我一个错误-谁能帮我吗?
ERROR TypeError: _this.data.recipe.ingredientList.delete is not a function
at add-recipe.component.ts:110
at Array.forEach (<anonymous>)
at AddRecipeComponent.push../src/app/components/HomePage/dialog/add-recipe/add-recipe.component.ts.AddRecipeComp
可能重复:
我有一个具有以下行的外部js:
var postmessage = "hi my favorite site is http://google.com";
但是有没有办法从这样的数组中随机选择一个站点
var postmessage = "hi my favorite site is +'random'";
random= http://google.com, http://yahoo.com, http://msn.com, http://apple.com
我该怎么做呢?
似乎有一个问题,因为Webpack不能编译我的SCSS文件。我有一个文件,一个package.json文件和一个使用webpack-cli init包生成的webpack.config.js文件。
以下是在将.scss文件导入到.js中时尝试编译时遇到的webpack错误
ERROR in ./src/scss/styles.scss 2:5
Module parse failed: Unexpected token (2:5)
You may need an appropriate loader to handle this file type, currently no loaders a
如果我有:
var myArray = new Array();
myArray['hello'] = value;
我怎么才能把钥匙“你好”换成别的东西呢?
像这样的东西会管用的。
var from = 'hello',
to = 'world',
i, value = myArray[from];
for( i in myArray )
if( i == from ) myArray.splice( i, 1 );
myArray[to] = value;
但是,是否有一个本机函数或更好的方法来做到这一点?
编辑
所以,我在Node.JS中创建了一个构造函数,我遇到了一些问题。
function server(server) {
this.channels = new Array
var channels = server.channels.array(); // Gets array of Channel Objects
channels.forEach(function(selectedchannel){
if (selectedchannel.constructor.name == "TextChannel") {
我用Firefox JS扩展写了这段代码
var results = gBrowser.contentDocument.getElementsByClassName("b-serp-item__title-link");
alert(results.length);
var countToDelete = results.length - 10;
alert(countToDelete);
if (countToDelete > 0)
{
for (var i = 0; i < countToDelete; i++);
{
aler
我看到答案是“javascript的代码在DOM包含#年元素之前执行。将javascript放在div之后或使用jQuery.ready()”,但我不知道应该放在哪个div之后?
<script src="/bower_components/morris.js/morris.min.js"></script>这是脚本包含吗?
错误:
Uncaught Error: Graph container element not found
at d [as constructor] (morris.min.js:6)
at d.c [as co
state: {
questions: [
{
"id": 1,
"name": "q1",
"category": "English Language",
"type": "multiple",
"question": "What is a name of any person, animal, place, thing and feeling?",
"correct_answer":
我正试图在Parse中运行一些云代码,这将允许我检查来自人们的提交的内容是否超过一个小时,如果是的话,删除它们。
在我的应用程序的快速文件中,我有:
for object in objects! {
let newstring = NSString(format: "%.0f", self.slider.value)
let newtimestamp = date
object.addObject(newstring, forKey: "times")
object.addObject(newtimestamp, forKey: