In addition, avoid returning objects that are null or in an invalid state.

此外，避免返回空对象或者状态无效的对象。

youdao

Both assume that all inputs are valid and no checks for invalid state are made.

假设所有的输入都是有效的，并且没有对无效状态的核查。

youdao

That is, if the test evaluates to true, the document will be seen to be in an invalid state.

如果测试结果是true，那么文档将处于无效状态。

youdao

The Council of State ruled on Tuesday that her election by the Supreme Court was invalid because there were not enough judges present when the vote took place.

BBC: Colombia chief prosecutor Viviane Morales resigns

The first phase in the project was to renovate the 1930s house, which was in a "horrendous" state, said Mr. Turner, having been lived in by an elderly invalid for several years.

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