Mobile Development - Lecture 4

 

Mobile Development- Using React Native - Lecture 4

Lecture Outcome:

At the end of the lecture, students will be able to know about

• How to Open and Run Project in VS
• Programming Basis

## EXPO GOTCHA's

# INTERNET
# EXPO INIT ( SHELL/CMD/POWERSHELl/CMDline) #notAdministrator
# cd into your project
# if you dont like CD

## GO TO VSCODE 
    -> OPEN 
        -> your project 
            -> in terminal

## in terminal
    -> npm run start (local, LAN, TUNNEL) 
    -> TUNNEL install it ( then you can use it to other phones/laptops without same internet)

### PROGRAMMING BASICS 
    symbols ( operators )   ISHAARAY
    function   EVENTS/TAKREEB
    variabls/constants   Zaray ( kam krna ma madad dain wali cheezain) 

FAIl, FAAAILL, MAFOOL 


`
const first = 20;  

if( first === 20 ) {
    print('20 chla h')
}else {
    print('nei yara 20 nei h')
}

# NODEJS
### PACKAGES WORKING
    - every package has scripts ~
    - every script can/can't have flags  e.g "expo start --FLAG"
## WHAT ARE FLAGS FOR
    - flags help us to do specific variations on a command


## TANA BANA ( TAKE AWAYS )
    => NODE JS is EVERYTHING
        => we get Frameworks(EXPO,RN,REACT,ANGULAR)
        => We get packages (react- native-calender) 
            => scripts help us to runa command/function/code/anything

### Rizwan 🏴‍☠️ asked us to install NODEJS then he went on to install EXPo and then created a project and asked us to run scripts