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CSSStyleDeclaration JS Conversion


Matriz JavaScript alguns()

Exemplo 1

Verifique se algum valor é superior a 18:

const ages = [3, 10, 18, 20];

ages.some(checkAdult);
function checkAdult(age) {
  return age > 18;
}

Definição e uso

O some()método verifica se algum elemento da matriz passa em um teste (fornecido como uma função).

O some()método executa a função uma vez para cada elemento do array:

  • Se a função retornar true , some()retornará true e parará.
  • Se a função retornar false , some()retornará false e parará.

O some()método não executa a função para elementos de array vazios.

O some()método não altera a matriz original.


Sintaxe

array.some(function(value, index, arr), this)

Parâmetros

Parameter Description
function Required.
A function to run for each array element.
Function parameters:
value Required.
The value of the current element.
index Optional.
The index of the current element.
arr Optional.
The array the current element belongs to.
this Optional. Default undefined.
A value passed to the function to be used as its "this" value.

Valor de retorno

Modelo Descrição
Um booleano truese algum dos elementos do array passar no teste, caso contrário false.


Suporte ao navegador

some()é um recurso ECMAScript3 (ES3).

ES3 (JavaScript 1999) é totalmente suportado em todos os navegadores:

Chrome IE Edge Firefox Safari Opera
Yes Yes Yes Yes Yes Yes

Exemplo 2

<p>Input: <input type="number" id="toCheck" value="15"></p>

<button onclick="myFunction()">Test</button>

<p>Values higher: <span id="demo"></span></p>

<script>
const numbers = [4, 12, 16, 20];

function checkValue(x) {
  return x > document.getElementById("toCheck").value;
}

function myFunction() {
  document.getElementById("demo").innerHTML = numbers.some(checkValue);
}
</script>