js 对象如何 行转成列

Question

[{a:1,b:2,c:3},{a:4,b:5,c:6}]如何转成竖列[[a,1,4],[b,2,5][c,3,6]]

Answer 1

vara=[{a:1,b:2,c:3},{a:4,b:5,c:6}]
Object.keys(a[0]).map(l=>[l,...a.map(e=>e[l])])
                            

Answer 2

varsource=[{a:1,b:2,c:3},{a:4,b:5,c:6}]
vartarget=[]
varstore={}
for(vari=0;ivarobj=source[i]
for(varkeyinobj){
if(store[key]){
store[key].push(obj[key])
}else{
store[key]=[obj[key]]
}
}
}
for(varkinstore){
store[k].unshift(k)
target.push(store[k])
}
console.log(target)