How to join two arrays into one two-dimensional array?

I have two arrays. How can I join them into one multidimensional array?

The first array is:

var arrayA = ['Jhon, kend, 12, 62626262662',
'Lisa, Ann, 43, 672536452',
'Sophie, Lynn, 23, 636366363'];


My other array has the values:

var arrayB = ['Jhon', 'Lisa', 'Sophie'];


How could I get an array with this format??

var jarray = [['Jhon', ['Jhon, kend, 12, 62626262662']],
['Lisa', ['Lisa, Ann, 43, 672536452']],
['Sohphie', ['Sophie, Lynn, 23, 636366363']]]


4 Answers
4

var jarray = ;
for (var i=0; i<arrayA.length && i<arrayB.length; i++)
jarray[i] = [arrayB[i], [arrayA[i]]];


However, I wouldn't call that "multidimensional array" - that usually refers to arrays that include items of the same type. Also I'm not sure why you want the second part of your arrays be an one-element array.

for (var i=0, l=Math.min(arrayA.length, arrayB.length); i<l; i++)

arrayA

You can use Underscore.js http://underscorejs.org/#find
Looks through each value in the list, returning the first one that passes a truth test (iterator). The function returns as soon as it finds an acceptable element, and doesn't traverse the entire list.

var even = _.find([1, 2, 3, 4, 5, 6], function(num) return num % 2 == 0; );
=> 2


Then, you can make the same with the array B elements and by code, make a join.

This is what I did to get what you were asking:

var jarray = ;
for (var i = 0; i < arrayB.length; i++)
jarray[i] = ;
jarray[i].push(arrayB[i]);
var valuesList = ,
comparator = new RegExp(arrayB[i]);
for (var e = 0; e < arrayA.length; e++)
if (comparator.test(arrayA[e]))
valuesList.push(arrayA[e]);


jarray[i].push(valuesList);



Here is a map version

var arrayA = ['Jhon, kend, 12, 62626262662',
'Lisa, Ann, 43, 672536452',
'Sophie, Lynn, 23, 636366363'];

var arrayB = ['Jhon', 'Lisa', 'Sophie'];

/* expected output
var jarray = [['Jhon', ['Jhon, kend, 12, 62626262662']],
['Lisa', ['Lisa, Ann, 43, 672536452']],
['Sohphie', ['Sophie, Lynn, 23, 636366363']]] */

var jarray = arrayB.map(function(item,i)
return [item,[arrayA[i]]];
);
console.log(jarray);

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