How to take Screenshot in iPhone/iPAD

1. Press and hold the Home button, then press the Sleep/Wake button. 
2. Your screen flashes.
3. Picture appear in your Camera Roll.

Good bug report always need screenshot, also its proof of bug which exist.

Install/Uninstall .app & .ipa Apps on iPhone/iPAD

Install App on iPhone/iPAD:

1. Connection Device to computer.
2. Open iTunes application on computer. As soon as device is connected it will start Syncing your device.
3. Drag and drop the .app or .ipa file into the Apps folder under the iTunes Library section.
4. Select the device which is connected.
5. Under “Sync Apps” make sure App is selected.
6. Now, Sync the device.
7. You can find the App installed on device.

Delete/Uninstall an App from iPhone/iPAD:
1. To delete an iPhone app, just press and hold one of the iPhone app icons on screen, until all the icons appear to get nervous and start wiggling around.
2. When this behavior starts, all of your third-party iPhone applications will show an "X" icon in the upper-left corner of their application icon, as shown in this iPhone screenshot:

 

3. At this point you can delete an iPhone app by pressing that "X" in the upper-left corner of the application icon (such as the Mobile News, Pandora, and Break iPhone apps in the figure above), and the iPhone should prompt you with some form of "Are you sure?" message.
4. Tap on "Yes".
5. App will be deleted/uninstalled.

Finding your iPhone UDID

What is the UDID?
Every iPhone or iPod Touch has a Unique Device Identifier (UDID), which is a sequence of 40 letters and numbers that is specific to your device. It’s like a serial number but much harder to guess. It will look something like this: 2c6f0cc904d437be2e1733235f5664094b831186.

Why do we need the UDID?
Your iPhone can only install programs that are approved by Apple. To Test the application or distribute for beta use, UDID need to be added to Provisioning file.

How do I get my UDID?
You can copy/paste your UDID from iTunes by following below mentioned steps.
1. Launch iTunes and connect your iPhone.
2. In the right pane, locate the information about your iPhone, including its name, capacity, software version, serial number, and phone number.

3. To get UDID click on Serial Number:.

4. It will display the UDID of the connected device.
5. To Copy the UDID to your clipboard. Click on Edit and then select Copy.

6. Paste it anywhere you want.

iPhone 4 Simulator

iPhone Simulator is a web application to test your iPhone Web Applications or iPhone version of your website. 

Application can be tested in both Landscape and Portrait mode.

Click here for more information and help.

Development Environment

Development environment refers to a server tier designated to a specific stage in a release process.

Environment/Tier Name	Description
Local	Developer's desktop/workstation
Virtual Machine	VM hosted on developers desktop or possibly development server
Development	Development server aka sandbox
Integration	CI build target, or for developer testing of side effects
Test/QA	For functional, performance testing, Quality Assurance etc.
UAT	User acceptance testing
Stage/Pre-production	Mirror of production environment
Production/Live	Serves end-users/clients

Source: Wikipedia

Difference between F5 and Ctrl+F5 page refreshing

F5 gives you the same page even if the content on the site changed. This is because it may load the page from the cache.


Ctrl+F5 forces a refresh in the cache. It will ensure that if the content has changed you will be viewing the latest content of the site.