使用javascript处理哈希数组

Question

Can you please show me the best way to process/ manipulate this array of hashes using javascript function chaining. I want to filter the data and return ONLY an array of hashes that contains data that in NOT all 0's.

data = [
    {name: "apple", data: [0, 0, 0]},
    {name: "banana", data: [1, 0, 2]},
    {name: "carrot", data: [0, 0, 0]},
    {name: "pineapple", data: [0, 0, 3]},
]

//result after filtering

data = [
    {name: "banana", data: [1, 0, 2]},
    {name: "pineapple", data: [0, 0, 3]},
]

I was thinking something along the lines of

data.filter((hash,i) => {hash.data.every((elem,i)=> elem == 0); 

Answer 1

This should do it

const data = [{name:”apple”,data:[0,0,0]}, {name:”banana”,data:[1,0,2]}, {name:””,carrot:[0,0,0]}, {name:”pineapple”,data:[0,0,3]}, ]

const nonzero = data.filter(({data}) => data.some(Boolean));

Answer 2

You were almost right. You need to invert the result of the every test, since you want the elements that aren't all zero; you could also use some and test for non-zero. Also, don't put curly braces around the body of the function if you just want to return the result of the expression.

 data = [{ name: "apple", data: [0, 0, 0] }, { name: "banana", data: [1, 0, 2] }, { name: "carrot", data: [0, 0, 0] }, { name: "pineapple", data: [0, 0, 3] }, ]; console.log(data.filter(hash => !hash.data.every(elem => elem == 0)));