let a =[1,2,3,4,5];
let b = [[1,2],[3,4],5]how to quickly implement the above a-> b operation?
let a =[1,2,3,4,5];
let b = [[1,2],[3,4],5]how to quickly implement the above a-> b operation?
function piecewise(ary, size) {
var ary = ary.slice()
len = ary.length,
retAry = []
if ( len < size ) {
return [ary];
}
var count = Math.floor(len / size) + (len % size == 0 ? 0 : 1)
while(count--) {
retAry.push(ary.splice(0, size))
}
return retAry
}
var ary = [1,2,3,4,5]
piecewise(ary, 2) I hope it will be helpful to you
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