大约有 13,916 项符合查询结果（耗时：0.0185秒） [XML]
Selecting last element in JavaScript array [duplicate]
... answer! It can be used in a one-liner (my_array could be replaced by an expression or function that returns an array) and you don't have to make a global change to the Array prototype.
– Jim Pivarski
Apr 25 '14 at 21:25
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Prevent “overscrolling” of web page
... Neither solution works for me on Chrome 49 for mac or Firefox 44 for mac. window.scrollY is always 0.
– momo
Apr 22 '16 at 21:40
3
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HTTP GET request in JavaScript?
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Browsers (and Dashcode) provide an XMLHttpRequest object which can be used to make HTTP requests from JavaScript:
function httpGet(theUrl)
{
var xmlHttp = new XMLHttpRequest();
xmlHttp.open( "GET", theUrl, false ); // false for synchronous request
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How do I get the current username in Windows PowerShell?
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Works as expected. Tested for url address reservation.
– Marek Bar
Jul 6 '18 at 8:36
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Use underscore inside Angular controllers
...underscore-module
Add angular-underscore-module.js to your main file (index.html)
<script src="bower_components/angular-underscore-module/angular-underscore-module.js"></script>
Add the module as a dependency in your App definition
var myapp = angular.module('MyApp', ['underscore'])
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Activity has leaked window that was originally added
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ActionBar text color
how can I change the text color of the ActionBar? I've inherited the Holo Light Theme, I'm able to change the background of the ActionBar but I don't find out what is the attribute to tweak to change the text color.
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Rspec doesn't see my model Class. uninitialized constant error
...f your spec/spec_helper.rb file
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
require 'rspec/autorun'
or you can just run
rails generate rspec:install
and overwrite your spec_helper with one generated for use with rspec-rails.
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MySQL: #126 - Incorrect key file for table
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Every Time this has happened, it's been a full disk in my experience.
EDIT
It is also worth noting that this can be caused by a full ramdisk when doing things like altering a large table if you have a ramdisk configured. You can temporarily comment out the ramdisk line to allow suc...
&& (AND) and || (OR) in IF statements
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No, it will not be evaluated. And this is very useful. For example, if you need to test whether a String is not null or empty, you can write:
if (str != null && !str.isEmpty()) {
doSomethingWith(str.charAt(0));
}
or, the other way around
if (str == null || str.isEmpty())...