Difference between revisions of "PERL/C2/Array-functions/Gujarati"

|-{| border=1

|'''push '''

| '''pop'''  

|'''shift'''

| '''unshift '''

 

|'''split'''

| '''splice '''

 

| અને  ''' join'''

| '''sort'''

 

| '''qw'''

| '''push function''' એરેના છેલ્લા પોઝીશન એટલેકે 3 પછી એલિમેન્ટ  દાખલ કરશે.

|''' shift function''' --જે એરે માંથી  પ્રથમ પોઝીશન કાઢશે.  

|I will open file which I have already created. મેં પહેલાથી જ  બનાવેલ  ''' perlArray dot pl''' ફાઈલ  kholish  

| Type the following piece of code as shown on the screen.  

| ''' unshift''' function will insert an '''element''' at the first position i.e before 1

| '''shift'''  function will remove an ''' element''' from the first position.  

| In our case, ''' zero''' will be removed.  

| Press '''Ctrl + S''' to save the file.  

|The ''' unshift function''' takes 2 '''arguments '''-  

|'''1st argument''' is the '''Array''' in which to add an '''element'''

|''' 2nd argument''' is the '''element''' to be added into the '''Array '''

|''' shift function''' takes only one '''argument''' -  

|This is the '''Array''' from which the '''element ''' needs to be removed.  

| ''' Note:''' Both these functions works at '''first position''' of an '''Array'''.  

| We can collect the '''element''' removed by '''shift function''' into some variable.  

|This syntax for this is ''' - $variable space =  space shift open bracket @myArray close bracket '''

|Then switch to the terminal and execute the ''' Perl script'''.  

|Type ''' perl perlArray dot pl''' and press '''Enter'''.

|The output displayed on the terminal is as highlighted.  

|Now, let us see how to remove an ''' element''' from a specified position of an '''Array.'''

|''' splice function''' removes an ''' element''' from a specified position of an '''Array'''.  

|The ''' return value''' of this '''function''' is an ''' Array''' of removed elements.  

|Let us understand this using a sample program.  

|Go to the ''' perlArray dot pl ''' file, which we created earlier.  

| Type the piece of code as shown on the screen.  

| We need to provide ''' index''' from where we want to remove the ''' elements''' and

| the ''' offset''' upto which we want to remove the '''elements '''

| In our case, the '''elements''' 5 and 6 will be removed.  

| Then switch to the ''' terminal'''  and execute the ''' Perl script''' by typing -  

| ''' perl perlArray dot pl''' and press '''Enter.'''

|The output is as shown on the terminal

| Now let us look at few other ''' inbuilt functions''' of '''Arrays.'''

|  ''' split function''' is used to divide a '''string''' at a specified '''delimiter. '''

|The return value of this ''' function''' is an '''Array'''.  

|The ''' elements''' of this '''Array''' are the divided portions of the '''string.'''

| ''' join function''' joins the '''elements''' of an '''Array''' , using the specified '''delimiter. '''

|It returns a string of joined '''elements.'''

| ''' sort function''' sorts an '''Array''' in alphabetical/numerical order.  

| ''' qw function ''' returns an '''Array''' of words, separated by a '''white space'''.

| Now let us understand all these ''' functions''' using a sample program.  

|Switch to ''' terminal''' and type

| ''' gedit arrayFunctions dot pl space ampersand and Press Enter'''

|Type the following piece of code as shown on screen.

|In this case, each word of the ''' variable string''' will become an ''' element''' of an '''Array'''

| Here, each '''element''' of '''newArray''' will be joined by '''comma'''.

|''' sort function''' will sort the '''elements''' of  an '''Array''' in alphabetical order.  

| '''qw function''' creates an '''Array''' of words separated by space.

| Let us understand each '''function.'''

|'''split function''' takes two '''arguments'''.

|''' 1st argument''' is the ''' delimiter''' by which the ''' string''' needs to be split

|''' 2nd''' is the '''string''' which needs to be split.  

|'''Delimiters''' can be specified in ''' forward slash, single or double quotes. '''

|''' join function''' takes 2 '''arguments'''.

|1st is the '''delimiter''' by which the '''Array elements''' needs to be joined.  

|2nd is the '''Array.'''

|'''Delimiters'''  can be specified in '''single or double quotes. '''

| ''' sort function''' takes a single '''argument''' , which is the '''Array''' that needs to be sorted.  

|''' qw function''' returns an ''' Array''' of words, separated by ''' space.'''

|It is not necessary to specify the word in ''' quotes''' , if written using '''qw. '''

|Then switch to the terminal and execute the ''' Perl script''' by typing -

|and press '''Enter.'''

|The following output is displayed on the screen.

|Let us summarize.  

 

|In this tutorial, we have learnt to -  

|add/remove ''' elements'''  from an '''Array '''

|basic functions which can be performed on '''Array'''  using sample programs

|Here is assignment for you -   

|split the above ''' string at '/ ' ''' (forward slash)  '''delimiter '''

 

|Add ''' https:// ''' at the start of an newly created '''Array''' 

|Remove ''' element “Perl” ''' from the '''Array '''

|Declare number '''Array ''' and sort it

|Watch the video available at the following link

|It summaries the Spoken Tutorial project

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

|  The Spoken Tutorial Project Team  Conducts workshops using spoken tutorials

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|  Hope you enjoyed this Perl tutorial.  

|This is Amol signing off.

|Thanks for joining.