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jQuery: Check if div with certain class name exists
... length is zero, it evaluates to false
if ($('div.mydivclass').length) {
http://api.jquery.com/size/
http://api.jquery.com/length/
UPDATE
The selected answer uses a perf test, but it's slightly flawed since it is also including element selection as part of the perf, which is not what's being te...
How to force link from iframe to be opened in the parent window
...
Use target-attribute:
<a target="_parent" href="http://url.org">link</a>
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Can I create links with 'target=“_blank”' in Markdown?
... you want to get that detailed, you'll just have to use HTML.
<a href="http://example.com/" target="_blank">Hello, world!</a>
Most Markdown engines I've seen allow plain old HTML, just for situations like this where a generic text markup system just won't cut it. (The StackOverflow en...
Error message “Forbidden You don't have permission to access / on this server” [closed]
...etting the options directive either in the global directory setting in the httpd.conf or in the specific directory block in httpd-vhosts.conf:
Options Indexes FollowSymLinks Includes ExecCGI
By default, your global directory settings is (httpd.conf line ~188):
<Directory />
Options Fol...
HTTP POST and GET using cURL in Linux [duplicate]
...i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource
with XML:
curl -H "Accept: application/xml" -H "Content-Type: application/xml" -X GET http://hostname/resource
POST:
For posting data:
curl --data "param1=value1&param2=value2" http://hostn...
Building and running app via Gradle and Android Studio is slower than via Eclipse
...DE.
# For more details on how to configure your build environment visit
# http://www.gradle.org/docs/current/userguide/build_environment.html
# The Gradle daemon aims to improve the startup and execution time of Gradle.
# When set to true the Gradle daemon is to run the build.
# TODO: disable daem...
How can I convert an image into Base64 string using JavaScript?
...u can choose from:
1. Approach: FileReader
Load the image as blob via XMLHttpRequest and use the FileReader API to convert it to a dataURL:
function toDataURL(url, callback) {
var xhr = new XMLHttpRequest();
xhr.onload = function() {
var reader = new FileReader();
reader.onloa...
Render HTML to PDF in Django site
...loader import get_template
from django.template import Context
from django.http import HttpResponse
from cgi import escape
def render_to_pdf(template_src, context_dict):
template = get_template(template_src)
context = Context(context_dict)
html = template.render(context)
result = ...
Maven2: Best practice for Enterprise Project (EAR file)
...ike this:
<?xml version="1.0" encoding="utf-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</mode...
How do I add a Maven dependency in Eclipse?
...-click on Global Repositories and select Go Into
Right-click on "central (http://repo.maven.apache.org/maven2)" and select "Rebuild Index"
Note that it will take a while to complete the download
Once indexing is complete, Right-click on the project -> Maven -> Add Dependency and start typi...