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26.js
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/** | |
* @param {number[]} nums | |
* @return {number} | |
*/ | |
var removeDuplicates = function(nums) { | |
//indexOf,利用这个方法,获取某个元素在数组中的位置; | |
len = nums.length; | |
a = []; | |
for (i = 0; i < len; i ++) | |
{ | |
ele = nums[i]; | |
//console.log(ele) | |
index = nums.indexOf(ele); | |
if (index != i) | |
{ | |
a.push(i); | |
} | |
} | |
//console.log(a) | |
//去掉多余的元素; | |
len2 = a.length | |
//判断如果数组不存在重复的元素,返回原数组len,并终止; | |
if (len2 == 0) | |
{ | |
return len; | |
//return; | |
} | |
else | |
{ | |
for (j = len2-1; j >= 0; j --) | |
{ | |
nums.splice(a[j],1); | |
} | |
//算新的len | |
new_len = nums.length; | |
return new_len; | |
} | |
}; | |
console.log(removeDuplicates([-3,-2,2])) |
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