let arr =[[ 'key', 'IAfpK' ]
[ ' age', '58' ]
[ ' key', 'WNVdi' ]
[ ' age', '64' ]
[ ' key', 'jp9zt' ]
[ ' age', '47' ]
[ ' key', '0Sr4C' ]
[ ' age', '68' ]];

I have an array with some values and I am trying to convert array data into json array with key-value pair. for example:

jsonObj ={
key:IAfpK,
age:58,
key:WNVdi,
age:64
}