freeCodeCamp/confirm-the-ending.russian.md at ff8db8ce9e8413f490626e1572e7fd09825db39c

Nicholas Carrigan 1e0e54446f

2020-06-30 14:21:26 +05:30

3.6 KiB

Raw Blame History

id, title, isRequired, challengeType, forumTopicId, localeTitle

id	title	isRequired	challengeType	forumTopicId	localeTitle
acda2fb1324d9b0fa741e6b5	Confirm the Ending	true	5	16006	Подтвердить завершение

Description

Проверьте, заканчивается ли строка (первый аргумент, str ) заданной целевой строкой (второй аргумент, target ). Эта проблема может быть решена с помощью .endsWith() , который был введен в ES2015. Но для этой задачи мы хотели бы, чтобы вы использовали один из методов подстроки JavaScript. Не забудьте использовать Read-Search-Ask, если вы застряли. Напишите свой собственный код.

Instructions

Tests

tests:
  - text: <code>confirmEnding("Bastian", "n")</code> should return true.
    testString: assert(confirmEnding("Bastian", "n") === true);
  - text: <code>confirmEnding("Congratulation", "on")</code> should return true.
    testString: assert(confirmEnding("Congratulation", "on") === true);
  - text: <code>confirmEnding("Connor", "n")</code> should return false.
    testString: assert(confirmEnding("Connor", "n") === false);
  - text: <code>confirmEnding("Walking on water and developing software from a specification are easy if both are frozen"&#44; "specification"&#41;</code> should return false.
    testString: assert(confirmEnding("Walking on water and developing software from a specification are easy if both are frozen", "specification") === false);
  - text: <code>confirmEnding("He has to give me a new name", "name")</code> should return true.
    testString: assert(confirmEnding("He has to give me a new name", "name") === true);
  - text: <code>confirmEnding("Open sesame", "same")</code> should return true.
    testString: assert(confirmEnding("Open sesame", "same") === true);
  - text: <code>confirmEnding("Open sesame", "pen")</code> should return false.
    testString: assert(confirmEnding("Open sesame", "pen") === false);
  - text: <code>confirmEnding("Open sesame", "game")</code> should return false.
    testString: assert(confirmEnding("Open sesame", "game") === false);
  - text: <code>confirmEnding("If you want to save our world, you must hurry. We dont know how much longer we can withstand the nothing", "mountain")</code> should return false.
    testString: assert(confirmEnding("If you want to save our world, you must hurry. We dont know how much longer we can withstand the nothing", "mountain") === false);
  - text: <code>confirmEnding("Abstraction", "action")</code> should return true.
    testString: assert(confirmEnding("Abstraction", "action") === true);
  - text: Do not use the built-in method <code>.endsWith()</code> to solve the challenge.
    testString: assert(!(/\.endsWith\(.*?\)\s*?;?/.test(code)) && !(/\['endsWith'\]/.test(code)));

Challenge Seed

function confirmEnding(str, target) {
  // "Never give up and good luck will find you."
  // -- Falcor
  return str;
}

confirmEnding("Bastian", "n");

Solution

function confirmEnding(str, target) {
  return str.substring(str.length - target.length) === target;
}

confirmEnding("Bastian", "n");

3.6 KiB Raw Blame History Unescape Escape