Lesson 17

Strings

In this lesson: you will work with text: take letters, change text to capital or small letters, and split it into words.

The whole lesson on one page

In this lesson: you will work with text: take letters, change text to capital or small letters, and split it into words.

A string is like a list: it has a length and indexes:

1тағ калима = "китоб";
2чоп(калима.дарозӣ);
3чоп(калима[0]);
4чоп(калима[калима.дарозӣ - 1]);
5барои (тағ ҳарф аз калима) {
6  чоп(ҳарф);
7}

You cannot change a letter of a string; you have to build a new string.

1тағ ном = хондан();
2тағ синну = хонданиРақам();
3чоп("Салом, " + ном + "!");
4чоп(`${ном} ${синну} сола аст.`);

Input

Зарина
13

Between backticks … (a template string), you can put a value into the text with ${…}.

Method	Meaning	Example	Result
`калон()`	capital letters	`"салом".калон()`	`"САЛОМ"`
`хурд()`	small letters	`"САЛОМ".хурд()`	`"салом"`
`дорад(х)`	is `х` in the string?	`"Душанбе".дорад("шан")`	`дуруст`
`тозаКардан()`	remove spaces at the edges	`" ҳа ".тозаКардан()`	`"ҳа"`
`ҷудокунӣ(" ")`	split into parts	`"ман ту ӯ".ҷудокунӣ(" ")`	`["ман", "ту", "ӯ"]`
`такрор(н)`	repeat `н` times	`"ҳа".такрор(3)`	`"ҳаҳаҳа"`

1тағ ҷумла = хондан();
2тағ калимаҳо = ҷумла.ҷудокунӣ(" ");
3чоп("Калимаҳо:", калимаҳо.дарозӣ);
4чоп(ҷумла.калон());

Input

ман барномасозиро дӯст медорам

Read a name and print the number of letters in it.

Input: One line: a name.

Output: The number of letters.

Read a line and print how many times the lowercase letter а appears in it.

Input: One line.

Output: The count.

Read a word. If it reads the same from the end (for example, нон, "bread"), print Ҳа ("Yes"), otherwise Не ("No").

Input: One word.

Output: Ҳа or Не

Read a sentence (the words are separated by one space) and print the number of words.

Input: One line.

Output: The number of words.