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题解 | #移除数组中的元素#

{"css":"","js":"function remove(arr, item) {\n var a= []\n for(let i=0;i<arr.length;i++){\n if(arr[i]!=item){\n a.push(arr[i])\n }\...

HTML/CSS/JavaScript

2021-09-30

1 323

题解 | #数组求和#

{"css":"","js":"function sum(arr) {\n var sum=0\n arr.forEach(function(item){\n sum += item\n \n })\n return sum\n}","ht...

HTML/CSS/JavaScript

2021-09-30

0 353

题解 | #查找数组元素位置#

{"css":"","js":"function indexOf(arr, item) {\n let index = arr.indexOf(item)\n return index\n}\n","html":"","libs":[]}

HTML/CSS/JavaScript

2021-09-30

0 239