1.严格相等(indexOf()、lastIndexOf()、includes()) 这三个方法都接受两个参数(要查找的元素、可选的起始搜索位置)indexOf()、includes()从数组第一项往后搜索,lastIndexOf()从数组最后一项往前开始搜索 indexOf与lastIndexOf返回要查找的元素在数组中的位置,如果没有找到返回-1,incoudes返回布尔值,表示是否至少...
find:找出第一个符合条件的元素 findIndex:找出第一个符合条件元素的索引 includes:判断数组是否包含某元素
Now when people refer to England you find Wales___ as well. A. include B. included C. including D. includes试题答案 在线课程 B 【解析】 试题分析:考查过去分词。现在当人们谈到英国时,你会发现威尔士也被包括在内。find+宾语+过去分词,find和Wales之间是被动关系,所以用included 考点:考查过去分词作...
Now when people refer to England you find Wales___ as well. A.includeB.includedC.includingD.includes 试题答案 在线课程 B 这题考察过去分词做宾语补足语的用法:find sb done“发现某人被…”句意是:当人们谈到英国时,你会发现威尔士也包含在内。Wales和include是被动的关系,所以选B。 练习册...
5. includes:返回布尔值,表示包含 arr.includes(valueToFind[, fromIndex]) ## String includes replace padStart padEnd 方法 1. includes:返回布尔值,表示包含 str.includes(searchString[, position]) 2. replace:替换字符串参数 str.replace(regexp|substr, newSubStr|function) 被替换的参数(正则 或 字符串...
ait includes the unchangeable laws bettween human and nature and what ideas we should hold when facing something around us. throungh this, we can find out xia da's specal thoughts. and this makes her also successful in japan. 它包括不变法律bettween人和自然,并且什么想法我们应该举行,当面对...
它是美丽的觉得雨季的水起源于你的像你和你那样的眼力和哭泣的学生 .. [translate] aOn your lips you'll find it not you .. Includes in his lap and cold 正在翻译,请等待... [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利语翻译 ...
Buy bamboo floor first when depends whether relevant information ready, includes manufacturers, trademarks, grade, inspection reporting, instructions, to after-sales service, information complete the manufacturer was having a certain scale formal enterprises, even a wrong to find. ...
ait includes the unchangeable laws between human and nature and what ideas we should hold when facing something around us. through this, we can find out xia da's special thoughts. and this makes her also successful in japan. 它包括不变法律在人和自然之间,并且什么想法我们应该举行,当面对某事在...
14.A Bite of China 2includes eight episodes.It the stories of more than 150peopletand over 300types of food.( ) A.findsB.provesC.coversD.imagines 试题答案 在线课程 分析舌尖上的中国2包括八集.报导了150多人的故事和300多种食物. 解答C 结合选项A.finds发现,找到;B.proves 证明; C.covers占据...