I have two arrays in javascript:
var array1 = ["a","b","c"];
var array2 = ["e","f","g"];
And I want the resulting array to be like this:
array3 = ["a","e","b","f","c","g"];
Any way to do this?
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Have you tried anything yourself yet?– SirkoCommented May 31, 2013 at 7:37
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Would that be the same stackoverflow.com/questions/4874818/… ?– MichaelCommented May 31, 2013 at 7:38
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What you want is not concatenation. You have confused at least four people with that title (three answerers and me).– John DvorakCommented May 31, 2013 at 7:42
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Sorry I thought it counted as a concatenation too... I don't know the right word for what I want– salameyCommented May 31, 2013 at 7:45
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1it is "zip" zipping 2 arrays– Thomas JunkCommented May 31, 2013 at 7:49
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Show 1 more comment
3 Answers
Will a straightforward loop do it?
array3 = new Array();
for(var i = 0; i < array1.length; i++)
{
array3.push(array1[i]);
array3.push(array2[i]);
}
answered May 31, 2013 at 7:39
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1Answer could be more robust, if you have different length arrays for instance. Commented Dec 8, 2021 at 0:40
You can try with concat() method:
var array1 = ["a","b","c"];
var array2 = ["e", "f","g"];
var array3 = array1.concat(array2); // Merges both arrays
For your specific requirement, you have to follow this:
function mergeArrays(a, b){
var ret = [];
for(var i = 0; i < a.length; i++){
ret.push(a[i]);
ret.push(b[i]);
}
return ret;
}
answered May 31, 2013 at 7:39
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8
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1This is not what I need, please see the example in my question– salameyCommented May 31, 2013 at 7:42
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1
This should work:
function zip(source1, source2){
var result=[];
source1.forEach(function(o,i){
result.push(o);
result.push(source2[i]);
});
return result
}
Look http://jsfiddle.net/FGeXk/
It was not concatenation, so the answer changed.
Perhaps you would like to use: http://underscorejs.org/#zip
answered May 31, 2013 at 7:39
