I have an array of array stored. I need to extract the particular value from this arrays.
e.g allarray contain the list of arrays allarray= [Array[3],Array[3],Array[3]] are three arrays present in that.
0:Array[3] 0:"a1" 1:"b1" 2:"c1"
1:Array[3] 0:"a2" 1:"b2" 2:"c2"
3:Array[3] 0:"a3" 1:"b3" 2:"c3"
I need to extract this c1,c2 and c3 from the above arrays and display in the alert box.
Can anyone tell me how i can do that?
i tried with $.each but unfortunately doesn't work. Can anyone?
If I understand you correctly, your array looks like this
var allarray = [["a1","b1","c1"],["a2","b2","c2"],["a3","b3","c3"]];
To get c1, c2, and c3 you could just do this
var c1 = allarray[0][2], c2 = allarray[1][2], c3 = allarray[2][2];
or you could do a loop to put all of the cs in a single array of its own
var cs = [];
for(var i = 0; i < allarray.length; i++) {
cs.push(allarray[i][2]);
}
This is what the Array.prototype.map function is for:
var arr = [["a1","b1","c1"],["a2","b2","c2"],["a3","b3","c3"]];
var theValues = arr.map(function(inner) {return inner[2]});
alert(theValues.join(', '));
Can try using map(). Example:
var allarray = [["a1","b1","c1"],["a2","b2","c2"],["a3","b3","c3"]],
index = 2;
allarray.map(function(val, ind){
document.write(allarray[ind][index] + '<br />');
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
var allarray = [
["a1", "b1", "c1"],
["a2", "b2", "c2"],
["a3", "b3", "c3"]
],
num = 2;
//one by one
allarray.forEach(function( arr ) {
alert( arr[ num ] );
});
//or all at once
alert( allarray.map(function( arr ) { return arr[ num ]; }).join(',') );
var arrOfArr=[['a1','b1','c1'],['a2','b2','c2'],['a3','b3','c3']];
var cVals=arrOfArr.map(function(element,index){
return arrOfArr[index][2];
});
alert(cVals);
You can access it by running
allarray[X][2]
where X is 0, 1, or 2 depending on which of the 3 arrays you want
