Answer:
function countWords(sentence) {
return sentence.match(/\S+/g).length;
}
const sentence = 'This sentence has five words ';
console.log(`"${sentence}" has ${countWords(sentence)} words` );
Explanation:
Regular expressions are a powerful way to tackle this. One obvious cornercase is that multiple spaces could occur. The regex doesn't care.
Answer:
Hangman is game which can be played with a pencil or pen and a paper. It is a multiplayer game which requires minimum two players. It is a guessing game, in which a player thinks of a word or a phrase and other player or players tries to guess it correctly, letter by letter or whole word or phrase at once, in a certain number of guesses.
In this game, the word to be guessed is represented by dashes. If the guessed word or letter is correct, the player fills the blank spaces. But if the guessed word or letter is wrong, the player draws an element of a hanged man stick figure one by one as a tally mark.
This game ends if the player who is guessing guesses the word or the phrase correctly and the guesser wins; or if the player guesses enough wrong letters of phrases that the other player finishes the drawing of the hangman and the guesser loses.
Answer:
create trigger F1_Del
after delete on Friend
for each row
when exists (select * from Friend
where ID1 = Old.ID2 and ID2 = Old.ID1)
begin
delete from Friend
where (ID1 = Old.ID2 and ID2 = Old.ID1);
end
create trigger F1_Insert
after insert on Friend
for each row
when not exists (select * from Friend
where ID1 = New.ID2 and ID2 = New.ID1)
begin
insert into Friend values (New.ID2, New.ID1);
end
