print(apply(negate, 5)); // -5You can pass closures inline without naming them:
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中东战火持续外溢，地区内产油国的利益受到巨大威胁。沙特国防部在周一表示，他们拦截了一架袭击该国谢拜油田的无人机，并已向伊朗发出警告，称如果伊朗继续袭击阿拉伯国家，其本身将是最大的输家。。新收录的资料对此有专业解读
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。新收录的资料对此有专业解读
function leaf(contents: T): BinaryTree {
SpecsConnectivityBluetooth 5.3Battery life (ANC)6 hours, 24 hours with caseWater/dust resistanceIPX4，更多细节参见新收录的资料