From d9e9adb5f80a819fe46349bcf6d1faec734b09cd Mon Sep 17 00:00:00 2001 From: Irvin Date: Wed, 16 Feb 2022 02:07:31 +0800 Subject: remove span tag in zh-CN --- .../global_objects/string/repeat/index.html | 96 +++++++++++----------- 1 file changed, 48 insertions(+), 48 deletions(-) (limited to 'files/zh-cn/web/javascript/reference/global_objects/string/repeat') diff --git a/files/zh-cn/web/javascript/reference/global_objects/string/repeat/index.html b/files/zh-cn/web/javascript/reference/global_objects/string/repeat/index.html index ce35065f1a..b880c16b92 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/string/repeat/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/string/repeat/index.html @@ -44,59 +44,59 @@ translation_of: Web/JavaScript/Reference/Global_Objects/String/repeat

此方法已添加到 ECMAScript 2015 规范中，并且可能尚未在所有 JavaScript 实现中可用。然而，你可以使用以下代码段对 String.prototype.repeat() 进行填充：

-
if (!String.prototype.repeat) {
-  String.prototype.repeat = function(count) {
-    'use strict';
-    if (this == null) {
-      throw new TypeError('can\'t convert ' + this + ' to object');
-    }
-    var str = '' + this;
-    count = +count;
-    if (count != count) {
-      count = 0;
-    }
-    if (count < 0) {
-      throw new RangeError('repeat count must be non-negative');
-    }
-    if (count == Infinity) {
-      throw new RangeError('repeat count must be less than infinity');
-    }
-    count = Math.floor(count);
-    if (str.length == 0 || count == 0) {
-      return '';
-    }
-    // 确保 count 是一个 31 位的整数。这样我们就可以使用如下优化的算法。
-    // 当前（2014年8月），绝大多数浏览器都不能支持 1 << 28 长的字符串，所以：
-    if (str.length * count >= 1 << 28) {
-      throw new RangeError('repeat count must not overflow maximum string size');
-    }
-    var rpt = '';
-    for (;;) {
-      if ((count & 1) == 1) {
-        rpt += str;
-      }
-      count >>>= 1;
-      if (count == 0) {
-        break;
-      }
-      str += str;
-    }
-    return rpt;
-  }
-}
+
if (!String.prototype.repeat) {
+  String.prototype.repeat = function(count) {
+    'use strict';
+    if (this == null) {
+      throw new TypeError('can\'t convert ' + this + ' to object');
+    }
+    var str = '' + this;
+    count = +count;
+    if (count != count) {
+      count = 0;
+    }
+    if (count < 0) {
+      throw new RangeError('repeat count must be non-negative');
+    }
+    if (count == Infinity) {
+      throw new RangeError('repeat count must be less than infinity');
+    }
+    count = Math.floor(count);
+    if (str.length == 0 || count == 0) {
+      return '';
+    }
+    // 确保 count 是一个 31 位的整数。这样我们就可以使用如下优化的算法。
+    // 当前（2014年8月），绝大多数浏览器都不能支持 1 << 28 长的字符串，所以：
+    if (str.length * count >= 1 << 28) {
+      throw new RangeError('repeat count must not overflow maximum string size');
+    }
+    var rpt = '';
+    for (;;) {
+      if ((count & 1) == 1) {
+        rpt += str;
+      }
+      count >>>= 1;
+      if (count == 0) {
+        break;
+      }
+      str += str;
+    }
+    return rpt;
+  }
+}

示例

-
"abc".repeat(-1)     // RangeError: repeat count must be positive and less than inifinity
-"abc".repeat(0)      // ""
-"abc".repeat(1)      // "abc"
-"abc".repeat(2)      // "abcabc"
-"abc".repeat(3.5)    // "abcabcabc" 参数count将会被自动转换成整数.
-"abc".repeat(1/0)    // RangeError: repeat count must be positive and less than inifinity
+
"abc".repeat(-1)     // RangeError: repeat count must be positive and less than inifinity
+"abc".repeat(0)      // ""
+"abc".repeat(1)      // "abc"
+"abc".repeat(2)      // "abcabc"
+"abc".repeat(3.5)    // "abcabcabc" 参数count将会被自动转换成整数.
+"abc".repeat(1/0)    // RangeError: repeat count must be positive and less than inifinity
 
-({toString : () => "abc", repeat : String.prototype.repeat}).repeat(2)
-//"abcabc",repeat是一个通用方法,也就是它的调用者可以不是一个字符串对象.

+({toString : () => "abc", repeat : String.prototype.repeat}).repeat(2)
+//"abcabc",repeat是一个通用方法,也就是它的调用者可以不是一个字符串对象.

规范

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