var arr = [
{ num : 33,
str: "one"
},
{ num : 34,
str: "two"
},
{ num : 36,
str: "three"
},
{ num : 37,
str: "一"
},
{ num : 42,
str: "二"
}
]想得到
var newarr = [ ["one","two"], ["three","一"], ["二"] ]
相邻的放在一个数组里面 33,34 36,37 42 求助js该怎么写
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