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VisualizaçõesHow to be sure that the next randomly selected value from an array is not the same as the current one using Javascript?
I am randomly selecting values from an array. I want to be sure that the next selected value is not the same as the current one. How can I implement this rule in Javascript?
const pages = [1, 2, 3, 4, 5];
const random = Math.floor(Math.random() * pages.length);
console.log(pages[random]);
·
Juan Pablo Isaza
2 Respostas
Responde à pergunta0
You could filter pages removing current value and only after that select random element.
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Juan Pablo Isaza
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If the one you pick is the same as the previous one, pick a new one:
const pages = [1, 2, 3, 4, 5];
const random = Math.floor(Math.random() * pages.length);
console.log(pages[random]);
let random2;
// Pick a new one:
while (random == ( random2 = Math.floor(Math.random() * pages.length)));
This assumes every value in the array is different, so it just cares that the two indexes (random and random2) are different.
·
Juan Pablo Isaza
Relatório
Responde à pergunta