javascript array column

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Louca
08 Feb 2019
1    //get column in javascript... 
2
3	function getCol(matrix, col){
4       var column = [];
5       for(var i=0; i<matrix.length; i++){
6          column.push(matrix[i][col]);
7       }
8       return column; // return column data..
9    }
10
11    var array = [new Array(20), new Array(20), new Array(20)]; //..your 3x20 array
12    getCol(array, 0); //Get first column
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