From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:40:17 -0500 Subject: initial commit --- .../reference/global_objects/rangeerror/index.html | 163 +++++++++++++++++++++ 1 file changed, 163 insertions(+) create mode 100644 files/zh-cn/web/javascript/reference/global_objects/rangeerror/index.html (limited to 'files/zh-cn/web/javascript/reference/global_objects/rangeerror/index.html') diff --git a/files/zh-cn/web/javascript/reference/global_objects/rangeerror/index.html b/files/zh-cn/web/javascript/reference/global_objects/rangeerror/index.html new file mode 100644 index 0000000000..c46f557e24 --- /dev/null +++ b/files/zh-cn/web/javascript/reference/global_objects/rangeerror/index.html @@ -0,0 +1,163 @@ +--- +title: RangeError +slug: Web/JavaScript/Reference/Global_Objects/RangeError +translation_of: Web/JavaScript/Reference/Global_Objects/RangeError +--- +
{{JSRef}}
+ +

RangeError对象标明一个错误，当一个值不在其所允许的范围或者集合中。

+ +

语法

+ +
new RangeError([message[, fileName[, lineNumber]]])
+ +

参数

+ +
+
message
+
可选，可读的错误描述
+
fileName {{non-standard_inline}}
+
可选，包含造成异常代码的文件名
+
lineNumber {{non-standard_inline}}
+
可选，造成异常的代码所在的行数
+
+ +

描述

+ +

试图传递一个number参数给一个范围内不包含该number的函数时则会引发RangeError。当传递一个不合法的length值作为{{jsxref("Array")}} 构造器的参数创建数组，或者传递错误值到数值计算方法（{{jsxref("Number.toExponential()")}}，{{jsxref("Number.toFixed()")}} ，{{jsxref("Number.toPrecision()")}}），会出现RangeError。.

+ +

属性

+ +
+
{{jsxref("RangeError.prototype")}}
+
允许在RangeError对象上附加属性。
+
+ +

方法

+ +

RangeError全局对象没有自带方法，但它通过可以原型链继承一些方法。

+ +

RangeError实例

+ +

属性

+ +
{{page('/en-US/docs/Web/JavaScript/Reference/Global_Objects/RangeError/prototype', 'Properties')}}
+ +

方法

+ +
{{page('/en-US/docs/Web/JavaScript/Reference/Global_Objects/RangeError/prototype', 'Methods')}}
+ +

例子

+ +

使用RangeError

+ +
var check = function(num) {
+  if (num < MIN || num > MAX) {
+    throw new RangeError('Parameter must be between ' + MIN + ' and ' + MAX);
+  }
+};
+
+try {
+  check(500);
+}
+catch (e) {
+  if (e instanceof RangeError) {
+    // 处理越界错误
+  }
+}
+
+ +

规范

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName('ES3')}}{{Spec2('ES3')}}Initial definition.
{{SpecName('ES5.1', '#sec-15.11.6.2', 'RangeError')}}{{Spec2('ES5.1')}} 
{{SpecName('ES6', '#sec-native-error-types-used-in-this-standard-rangeerror', 'RangeError')}}{{Spec2('ES6')}} 
{{SpecName('ESDraft', '#sec-native-error-types-used-in-this-standard-rangeerror', 'RangeError')}}{{Spec2('ESDraft')}} 
+ +

浏览器兼容性

+ +
{{CompatibilityTable}}
+ +
+ + + + + + + + + + + + + + + + + + + +
FeatureChromeFirefox (Gecko)Internet ExplorerOperaSafari
Basic support{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}
+
+ +
+ + + + + + + + + + + + + + + + + + + + + +
FeatureAndroidChrome for AndroidFirefox Mobile (Gecko)IE MobileOpera MobileSafari Mobile
Basic support{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}
+
+ +

相关连接

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