Answers for "in a 2d array how to access and return the columns only"

Javascript

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javascript array column

//get column in javascript... 

	function getCol(matrix, col){
       var column = [];
       for(var i=0; i<matrix.length; i++){
          column.push(matrix[i][col]);
       }
       return column; // return column data..
    }

    var array = [new Array(20), new Array(20), new Array(20)]; //..your 3x20 array
    getCol(array, 0); //Get first column

Posted by: Guest on May-10-2020

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