{"id":5741,"date":"2023-01-06T14:52:04","date_gmt":"2023-01-06T06:52:04","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5741"},"modified":"2023-01-06T14:52:04","modified_gmt":"2023-01-06T06:52:04","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8react-js%e7%9a%84reactlist%e7%8d%b2%e5%8f%96%e5%90%91%e4%b8%8b%e5%8f%96%e6%95%b4floor","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8react-js%e7%9a%84reactlist%e7%8d%b2%e5%8f%96%e5%90%91%e4%b8%8b%e5%8f%96%e6%95%b4floor\/","title":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528React.JS\u7684ReactList\u7372\u53d6\u5411\u4e0b\u53d6\u6574(floor)"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"React, React List, Floor\"><\/p>\n<h1>\u4f7f\u7528 React.JS \u5c0d React List \u9032\u884c\u5411\u4e0b\u53d6\u6574(floor)<\/h1>\n<p>React.JS \u662f\u4e00\u500b\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u7684 JavaScript \u5eab\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5feb\u901f\u69cb\u5efa\u51fa\u9ad8\u6027\u80fd\u7684\u7db2\u9801\u61c9\u7528\u7a0b\u5e8f\u3002\u5728 React.JS \u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528 React List \u4f86\u5c0d\u6578\u64da\u9032\u884c\u64cd\u4f5c\uff0c\u5176\u4e2d\u4e00\u500b\u64cd\u4f5c\u5c31\u662f\u5c0d React List \u9032\u884c\u5411\u4e0b\u53d6\u6574(floor)\u3002<\/p>\n<p><!--more--><\/p>\n<p>\u5728 React.JS \u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528 <code>Math.floor()<\/code> \u65b9\u6cd5\u5c0d React List \u9032\u884c\u5411\u4e0b\u53d6\u6574(floor)\u3002<code>Math.floor()<\/code> \u65b9\u6cd5\u6703\u5c07 React List \u4e2d\u7684\u6bcf\u500b\u5143\u7d20\u90fd\u5411\u4e0b\u53d6\u6574\uff0c\u4e26\u8fd4\u56de\u4e00\u500b\u65b0\u7684 React List\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u6240\u6709\u5411\u4e0b\u53d6\u6574\u5f8c\u7684\u5143\u7d20\u3002<\/p>\n<p>\u8209\u500b\u4f8b\u5b50\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b React List\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u4e00\u4e9b\u6d6e\u9ede\u6578\uff1a<\/p>\n<pre class=\"brush: javascript\">\nconst numbers = [1.5, 2.3, 3.7, 4.1, 5.9];\n<\/pre>\n<p>\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 <code>Math.floor()<\/code> \u65b9\u6cd5\u5c0d\u9019\u500b React List \u9032\u884c\u5411\u4e0b\u53d6\u6574\uff1a<\/p>\n<pre class=\"brush: javascript\">\nconst floorNumbers = numbers.map(Math.floor);\n<\/pre>\n<p>\u9019\u6a23\uff0c\u6211\u5011\u5c31\u53ef\u4ee5\u5f97\u5230\u4e00\u500b\u65b0\u7684 React List\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u6240\u6709\u5411\u4e0b\u53d6\u6574\u5f8c\u7684\u5143\u7d20\uff1a<\/p>\n<pre class=\"brush: javascript\">\nconsole.log(floorNumbers); 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