CODE EXAMPLE FOR JAVASCRIPT

Minimum Path Sum for loop

var minPathSum = function(grid) {
    const n = grid.length
    const m = grid[0].length

    
    for( let i =1; i<n;i++){
        grid[i][0] += grid[i-1][0]
    }
    
    for(let j=1; j<m;j++){
        grid[0][j] += grid[0][j-1]
    }
    
    for(let i=1; i<n;i++){
        for(let j=1;j<m;j++){
            grid[i][j] += Math.min(grid[i-1][j],grid[i][j-1])
        }
    }
    
    return grid[n-1][m-1]
};