From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:40:17 -0500 Subject: initial commit --- .../global_objects/number/tointeger/index.html | 97 ++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 files/zh-cn/web/javascript/reference/global_objects/number/tointeger/index.html (limited to 'files/zh-cn/web/javascript/reference/global_objects/number/tointeger') diff --git a/files/zh-cn/web/javascript/reference/global_objects/number/tointeger/index.html b/files/zh-cn/web/javascript/reference/global_objects/number/tointeger/index.html new file mode 100644 index 0000000000..24abe2125e --- /dev/null +++ b/files/zh-cn/web/javascript/reference/global_objects/number/tointeger/index.html @@ -0,0 +1,97 @@ +--- +title: Number.toInteger() +slug: Web/JavaScript/Reference/Global_Objects/Number/toInteger +translation_of: Archive/Web/JavaScript/Number.toInteger +--- +
{{JSRef("Global_Objects", "Number")}} {{obsolete_header("33")}} {{non-standard_header}}
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概览

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Number.toInteger() 用来将参数转换成整数,但该方法的实现已被移除.

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如果参数是 {{jsxref("Global_Objects/NaN", "NaN")}}, {{jsxref("Global_Objects/null", "null")}} 或 {{jsxref("Global_Objects/undefined", "undefined")}}, 会返回0 . 如果参数值是true返回1,false的话返回0.

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语法

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Number.toInteger(number)
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参数

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number
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将被转换成整数的参数.
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示例

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例子: 使用 toInteger()方法

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Number.toInteger(0.1);     // 0
+Number.toInteger(1);       // 1
+Number.toInteger(Math.PI); // 3
+Number.toInteger(null);    // 0
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Specifications

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浏览器兼容性

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{{CompatibilityTable}}
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FeatureChromeFirefox (Gecko)Internet ExplorerOperaSafari
Basic support{{CompatNo}}Firefox 16 to 32{{CompatNo}}{{CompatNo}}{{CompatNo}}
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FeatureAndroidChrome for AndroidFirefox Mobile (Gecko)IE MobileOpera MobileSafari Mobile
Basic support{{CompatNo}}{{CompatNo}}Firefox 16 to 32{{CompatNo}}{{CompatNo}}{{CompatNo}}
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See also

+ + -- cgit v1.2.3-54-g00ecf