I want to put const arr = [
][10, 22, 33, 14, 25, 56],
[11, 12, 31, 24, 15, 26],]
becomes const result = [
[10, 11],
[22, 12],
[33, 31],
[14, 24],
[25, 15],
[56, 26]]
what should I do
I want to put const arr = [
][10, 22, 33, 14, 25, 56],
[11, 12, 31, 24, 15, 26],]
becomes const result = [
[10, 11],
[22, 12],
[33, 31],
[14, 24],
[25, 15],
[56, 26]]
what should I do
first of all, you should try it by yourself. Even if you don't write well, there is a lot of recursive for loops, and even if you can't write it, it's better than not trying at all. At least there is an idea
.var data = [[10, 22, 33], [11, 12, 31, 24, 15, 26], [10, 22, 33]]
var res = Array(Math.max(...data.map(arr => arr.length)))
.fill()
.map((val, index) => [data.map(v => v[index])])
console.log(res)
the idea of this question:
res is determined by the longest in data , so Math.max (.data.map (arr = > arr.length))
res , add the items in data in turn, so (val, index) = > [data.map (v = > v [index])]
fill () before and after map method of ES5 can be applied tie first, and then group it in pairs.
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