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Unique "key" prop

Puzzled Penguin answered on December 4, 2024 Popularity 2/10 Helpfulness 1/10

answer Unique "key" prop

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Unique "key" prop

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Unique "key" prop
Ex1:
function MyComponent() {
  const items = ["Apple", "Banana", "Orange"];
  return (
    <ul>
      {items.map(item => (
        <li>{item}</li>  // Cảnh báo: Không có 'key' prop
      ))}
    </ul>
  );
}

function MyComponent() {
  const items = ["Apple", "Banana", "Orange"];
  return (
    <ul>
      {items.map((item, index) => (
        <li key={index}>{item}</li>  // Thêm 'key' prop
      ))}
    </ul>
  );
}

Ex2:
function MyComponent() {
  const items = ["Apple", "Banana", "Orange"];
  return (
    <ul>
      {items.map((item, index) => (
        <li key={index}>{item}</li>  // Thêm 'key' prop
      ))}
    </ul>
  );
}

function MyComponent() {
  const items = ["Apple", "Banana", "Orange"];
  return (
    <ul>
      {items.map((item, index) => (
        <li key={index}>{item}</li>  // Thêm 'key' prop
      ))}
    </ul>
  );
}

Popularity 2/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript prop unique

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Contributed on Dec 05 2024

Puzzled Penguin

0 Answers Avg Quality 2/10

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    private preencherCamposComProduto(produtoSelecionado) {
        const tabs = Metadata.getInstance<any>('tabsBasicUsageExample');
        if (tabs && tabs.tabs) {
            tabs.tabs.forEach(tab => {
                tab.childrenInstances.forEach(campo => {
                    const bindOrDataField = campo.bind || campo.dataField || campo.userProperties.bind;
                    const valorCampo = produtoSelecionado[bindOrDataField];
                    const nomeCampo = campo.name;
                    if (valorCampo !== undefined) {
                        this.preencherCampo(bindOrDataField, valorCampo, nomeCampo);
                    }
                });
            });
        }
    }

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: Grepper

Tags: whatever card collapse

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Contributed on Dec 04 2024

João Rodrigues

0 Answers Avg Quality 2/10

Unique "key" prop

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