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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                ~~~ var arr=[1,2,3,4,5,6]; //數組長度 arr.length //刪除數組最后一個,有返回值 arr.pop(); //刪除數組第一個,有返回值 arr.shift(); //在最前面數組添加值0 arr.unshift(0); //在最后添加值7 arr.push(7); var arr1=[7,8,9,10]; //合并數組 arr.concat(arr1) //輸出1,2,3,4,5,6,7,8,9,10 //從字面上對數組進行排序 arr3=['ali','baidu','tianya','sina','weibo','kaixin','meizu']; arr3.sort(); //輸出ali,baidu,kaixin,meizu,sina,tianya,weibo //從數值上對數組進行排序。 arr4=[1,4,11,15,24,54,122,23]; function sortNum(a,b){ return a-b; } arr4.sort(sortNum); console.log(arr4); //輸出1,4,11,15,23,24,54,122 //join數組連接 arr5=['hello','my','name','is','xiaodu']; console.log(arr5.join('-')); //輸出hello-my-name-is-xiaodu // slice() 方法可從已有的數組中返回選定的元素。 arr6=['hello','my','name','is','xiaodu']; console.log(arr6.slice(1,5)); //返回my,name,is,xiaodu //splice該方法會改變原始數組 arr7=[1,3,6,2,10]; console.log(arr6.splice(0,2,'hello')); console.log(arr6); //hello,6,2,10 ~~~
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