Ruby/C2/Variables-in-Ruby/Gujarati - Revision history

PoojaMoolya at 05:43, 1 March 2017

2017-03-01T05:43:20Z

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Jyotisolanki at 11:14, 21 July 2014

2014-07-21T11:14:03Z

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Jyotisolanki at 07:06, 9 July 2014

2014-07-09T07:06:35Z

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Jyotisolanki at 12:45, 8 July 2014

2014-07-08T12:45:28Z

Jyotisolanki at 12:31, 8 July 2014

2014-07-08T12:31:55Z

Jyotisolanki at 05:43, 8 July 2014

2014-07-08T05:43:52Z

Jyotisolanki: Created page with '{| border=1 || ''Time''' || '''Narration''' |- | 00.02 | Welcome to the Spoken Tutorial on Variables in '''Ruby''' |- | 00.06 | In this tutorial we will learn |- | 00.09…'

2014-07-08T05:11:49Z

Created page with '{| border=1 || ''Time''' || '''Narration''' |- | 00.02 | Welcome to the Spoken Tutorial on Variables in '''Ruby''' |- | 00.06 | In this tutorial we will learn |- | 00.09…'

New page

{| border=1
|| ''Time'''
|| '''Narration'''

|-
| 00.02
| Welcome to the Spoken Tutorial on Variables in '''Ruby'''

|-
| 00.06
| In this tutorial we will learn

|-
| 00.09
| What is a variable?

|-
| 00.10
| Dynamic typing in '''Ruby'''

|-
| 00.13
| Declaring a variable

|-
| 00.15
| Converting variable types

|-
| 00.18
| What is variable's scope?

|-
| 00.20
| Types of variables

|-
| 00.23
| Here we are using '''Ubuntu Linux version 12.04''' '''Ruby''' 1.9.3

|-
| 00.32
| To follow this tutorial you must have the knowledge of using''' Terminal''' in '''Linux.'''

|-
| 00.38
| You must also be familiar with '''irb'''

|-
| 00.41
| If not, for relevant tutorials, please visit our website

|-
| 00.47
| Now I will explain what a variable is.

|-
| 00.50
| Variable is used to store a value.

|-
| 00.54
| Variable is a reference that can be assigned.

|-
| 00.58
| Please note that '''Ruby '''variables are''' case sensitive.'''

|-
| 01.04
| Variable names should be meaningful.

|-
|01.07
| Variable name may only contain lowercase letters, numbers, underscores. Ex : first_name

|-
| 01.20
| Now let us see what is dynamic typing

|-
| 01.23
| '''Ruby''' is a dynamic typed language.
|-
| 01.27
| It means that you don't need to declare '''datatype''' while creating a variable.

|-
| 01.34
| '''Ruby interpreter '''determines the data type at the time of assignment.

|-
| 01.39
| Now let us see how to declare a variable in '''Ruby.'''

|-
| 01.45
| Open the terminal by pressing '''Ctrl, Alt''' and''' T '''keys simultaneously.

|-
| 01.51
| A terminal window appears on your screen.

|-
| 01.55
| Now, type '''irb'''

|-
| 01.57
| Press '''Enter '''to launch '''Interactive Ruby'''

|-
| 02.02
| Now type '''var1''' equal to 10 and Press '''Enter'''

|-
| 02.09
| Here we have declared a variable '''var1''' and assigned a value '''10 ''' to it.

|-
| 02.15
| Let's check whether the datatype allotted by the interpreter is integer or not.

|-
| 02.21
| So, type '''var1''' dot '''kind'''_(underscore)'''of '''(?)question mark '''Integer''' and press '''Enter'''

|-
| 02.37
| We will get the output as '''true.'''

|-
| 02.39
| In''' Ruby''' you can dynamically change the variable type.

|-
| 02.44
| To do so, just assign a new value to it.

|-
| 02.47
| Let's do this by assigning a '''string''' value to variable '''var1.'''

|-
| 02.53
| Type '''var1''' equal to within double quote '''hello'''and press Enter

|-
| 03.02
| Let's verify the variable type assigned

|-
| 03.06
| Type '''var1''' dot '''class '''

|-
| 03.12
| Class method tells us what class of variable it is. Now Press''' Enter'''

|-
| 03.20
| We get the output as '''string'''

|-
| 03.23
| '''Ruby '''has automatically changed the variable type from '''integer''' to '''string'''

|-
| 03.29
| We will now learn how to convert a variable value to different type

|-
| 03.35
| Lets switch back to slides

|-
| 03.38
| '''Ruby''' variable classes have methods to convert their value to a different type

|-
| 03.45
| '''to_i '''method is used to convert a variable to '''integer'''
|-
| 03.51
| '''to_f '''method is used to convert a variable to '''floating point value'''
|-
| 03.57
| '''to_s''' method is used to convert a variable to''' string'''

|-
| 04.03
| '''to _s''' method takes number base as an argument.

|-
| 04.08
| The conversion depends on this number base.

|-
| 04.12
| Now let us try out these methods.

|-
| 04.15
| Go to the''' terminal''' Lets clear the terminal first

|-
| 04.21
| Press Ctrl L to clear the '''irb '''console

|-
| 04.25
| Now Type '''y '''equal to '''20''' and Press '''Enter'''

|-
| 04.32
| Here we have declared a variable called''' y''' and assigned a value '''20''' to it.

|-
| 04.39
| We will now convert '''y''' to a floating point value using '''to '''underscore''' f''' method

|-
| 04.47
| Type '''y '''dot '''to '''underscore '''f''' and Press '''Enter'''

|-
| 04.55
| We will get the value as float'''.'''

|-
| 04.57
| Now Type '''y dot '''to '''underscore s''' and Press '''Enter'''

|-
| 05.06
| We will get output '''20 '''within double quotes

|-
| 05.10
| To convert variable '''y''' in binary form give number base as '''2''' in '''to_s''' method

|-
| 05.18
| Press up arrow key to get the previous command

|-
| 05.22
| Type opening bracket 2 closing bracket and press '''Enter'''

|-
| 05.29
| We get the output in the binary form

|-
| 05.33
| Similarly you can convert variable '''y''' to '''octal''' or '''hexadecimal''' form

|-
| 05.39
| By changing the number base to 8 or 16.

|-
| 05.44
| Let us switch back to our slide

|-
| 05.47
| We will now learn what is a '''variable scope'''.

|-
| 05.51
| '''Scope''' defines where in a program a variable is accessible.

|-
| 05.56
| '''Ruby''' has four types of variable scope:

|-
| 06.00
| Local

|-
| 06.01
|Global

|-
| 06.02
| Instance and

|-
| 06.04
| Class

|-
| 06.06
| Each variable type is declared by using a special character at the beginning of the variable name

|-
| 06.14
| '''$ '''represents ''' global''' variable

|-
| 06.18
| Lower case letters and underscore represents a '''local''' variable

|-
| 06.25
| '''@''' represents an '''instance''' variable

|-
| 06.29
| Two''' @@''' symbols represents a '''class''' variable

|-
| 06.33
| Upper case letters represents a '''constant'''

|-
| 06.37
| We will learn in detail about this in another tutorial.

|-
| 06.42
| This brings us to the end of this Spoken Tutorial. Let us summarises

|-
| 06.48
| In this tutorial we have learnt

|-
| 06.51
| To declare a variable eg var1=10
|-
| 06.56
| Changing variable type using to_f, to_s methods
|-
| 07.04
| Different Variable '''scope'''

|-
| 07.06
| As an assignment

|-
| 07.08
| Declare a variable and convert it to '''octal''' and '''hexadecimal''' form

|-
| 07.14
| Watch the video available at the following link.

|-
| 07.17
| It summarises the Spoken Tutorial project.

|-
| 07.20
| If you do not have good bandwidth, you can download and watch it.

|-
| 07.24
| The Spoken Tutorial Project Team :

|-
| 07.27
| Conducts workshops using spoken tutorials

|-
| 07.30
| Gives certificates to those who pass an online test

|-
| 07.34
| For more details, please write to contact at spoken hyphen tutorial dot org

|-
| 07.41
| Spoken Tutorial Project is a part of the Talk to a Teacher project.

|-
| 07.45
| It is supported by the National Mission on Education through ICT, MHRD, Government of India.

|-
| 07.51
| More information on this Mission is available at the below link

|-
| 07.57
| This is Afrin Pinjari from IIT Bombay, signing off.

Thank you for watching.

|}

@@ Line 75: / Line 75: @@
 |-
 |01.07
-| ''' Variable''' nam name may only contain lowercase letters, numbers, underscores.  Ex : first_name
+| ''' Variable''' નામ ફક્ત ધરાવે છે.  lowercase letters, numbers, underscores.  Ex : first_name
 |-
-|  01.20
+|  01.૨૦
-|   Now let us see what is dynamic typing
+| ચાલોજોઈએ  '''dynamic typing''' શું છે.
 |-
 |  01.23
-|  '''Ruby''' is a dynamic typed language.
+|  '''Ruby''' એ  '''dynamic typed''' ભાષા છે.
 |-
 |  01.27
-|  It means that you don't need to declare '''datatype''' while creating a variable.
+|  એનો અથ એ છે કે વેરીએબલ બનાવતી વખતે તમને '''datatype''' ડીકલેર કરવાની જરૂરત નથી.
 |-
 |  01.34
-|  '''Ruby interpreter '''determines the data type at the time of assignment.
+|  '''Ruby interpreter '''અસાઇનમેન્ટ કરતી વખતે ડેટા ટાઈપ નક્કી કરે છે.
-−
-−
 |-
 |  01.39
-|  Now let us see how to declare a variable in '''Ruby.'''
+|  ચાલો હવે જોઈએ  '''Ruby.'''મા વેરીએબલ કેવી રીતે ડીકલેર કરવું.
 |-
 |  01.45
-|  Open the terminal by pressing '''Ctrl, Alt''' and''' T '''keys simultaneously.
+|   '''Ctrl, Alt''' અને ''' T '''કીઓ એક સાથે દાબી ટર્મિનલ ખોલો.

@@ Line 64: / Line 64: @@
 |-
 |  00.54
-|  Variable is a reference that can be assigned.
+|  વેરિયેબલ સંદર્ભ છે જેની  સોંપણી કરી શકાય છે.
 |-
 |  00.58
-|  Please note that '''Ruby '''variables are''' case sensitive.'''
+|  નોંધ લો કે   '''Ruby '''વેરીએબલ એ ''' case sensitive.''' છે.
 |-
 | 01.04
-|   Variable names should be meaningful.
+|   '''Variable''' નામો અર્થપૂર્ણ હોવું જોઈએ.
-−
 |-
 |01.07
-|  Variable name may only contain lowercase letters, numbers, underscores.  Ex : first_name
+| ''' Variable''' nam name may only contain lowercase letters, numbers, underscores.  Ex : first_name
 |-

@@ Line 5: / Line 5: @@
 |-
 |  00.02
-|   Welcome to the Spoken Tutorial on Variables in '''Ruby'''
+|   '''Ruby''' માં વેરીએબલ્સ પર સ્પોકન ટ્યુટોરીયલ પર તમારું  સ્વાગત છે.
 |-
 |  00.06
-| In this tutorial we will learn
+| આ ટ્યુટોરીયલમાં આપણે શીખીશું.
 |-
 |  00.09
-| What is a variable?
+|  '''''variable ''''''' શું છે?
 |-
 |  00.10
-|  Dynamic typing in '''Ruby'''
+|   '''Ruby''' માં ગતિશીલ ટાઇપિંગ.
 |-
 |  00.13
-|  Declaring a variable
+|  '''''variable ''''' ડિક્લેર કરવું.
 |-
 |  00.15
-|  Converting variable types
+|  '''''variable ''''' ના પ્રકાર બદલવું.
 |-
 |  00.18
-|  What is variable's scope?
+|  '''''variable ''''' ના સ્કોપ શું છે?
 |-
 |  00.20
-|  Types of variables
+|  વરીઅબ્લેસ '''''variable ''''' ના પ્રકાર.
 |-
 |  00.23
-|  Here we are using  '''Ubuntu Linux version 12.04'''    '''Ruby''' 1.9.3
+|  અહી આપણે વાપરી રહ્યા છે   '''Ubuntu Linux version 12.04'''    '''Ruby''' 1.9.3
 |-
 |  00.32
-|  To follow this tutorial you must have the knowledge of using''' Terminal''' in '''Linux.'''
+|  આ ટ્યુટોરીયલ અનુસરવા તમને ''''Linux ''' માં  '''' '''' Terminal'''' વાપરવાનો જ્ઞાન હોવું જ જોઈએ.
 |-
 |  00.38
-| You must also be familiar with '''irb'''
+| તમે ''' IRB''' પરિચિત હોવા જોઇએ
 |-
 |  00.41
-| If not, for relevant tutorials, please visit our website
+| Iજો નથી , તો સંબંધિત ટ્યુટોરિયલ્સ માટે, અમારા વેબસાઇટ જુઓ
 |-
 |  00.47
-|   Now I will explain what a variable is.
+|   હવે હું સમજાવીશ  '''''variable '''''' શું છે.
 |-
 |  00.50
-|  Variable is used to store a value.
+|  '''''variable '''''' વેલ્યુ સંગ્રહવા માટે ઉપયોગી છે.
 |-