RahmatSaeedi

function absoluteValuesSumMinimization(a) {
    
    let sum = a.map( i => distanceCalculator(a, i));
    let sumMin = sum.slice().sort((a,b) => a-b)[0];
    
    return a[sum.indexOf(sumMin)];
}

function distanceCalculator(a, val){
    return a.map(i => Math.abs(i-val)).reduce((sum, num) => sum + num);

RahmatSaeedi

function depositProfit(deposit, rate, threshold) {

    
    return Math.ceil(Math.log(parseFloat(threshold)/parseFloat(deposit)) / Math.log(1 + parseFloat(rate)/100.0));
}

RahmatSaeedi

function circleOfNumbers(n, firstNumber) {
    return (n/2+firstNumber) % n;
}

RahmatSaeedi

function chessBoardCellColor(cell1, cell2) {
    return (cell1.charCodeAt(0) - cell2.charCodeAt(0) + cell1.charCodeAt(1) - cell2.charCodeAt(1)) %2 == 0;
}

RahmatSaeedi

function alphabeticShift(inputString) {
    return inputString.split("").map( c => {
            if(c == 'z')
                c = 'a';
            else
                c = String.fromCharCode(c.charCodeAt(0) + 1);
            return c;
      }).join("");
}

RahmatSaeedi

function variableName(name) {
    return name.match(/^[A-Za-z_][A-Za-z_0-9]*$/) != null ? true : false;
}

RahmatSaeedi

function evenDigitsOnly(n) {
    return n.toString().split("").every((n) => (parseInt(n) % 2 == 0));
}

RahmatSaeedi

function arrayReplace(inputArray, elemToReplace, substitutionElem) {
 
    return inputArray.map(i => i==elemToReplace? substitutionElem:i);
}

RahmatSaeedi

function minesweeper(matrix) {
    let height = matrix.length;
    let width = matrix[0].length;
    
    let outArray = Array.from(Array(height), () => new Array(width));
    
    let mines = 0;
    
    for(let i = 0; i < height; i++) {
        for(let j = 0; j < width; j++) {

RahmatSaeedi

function boxBlur(image) {
    let bluredImage = Array.from(Array(image.length-2), () => new Array(image[0].length-2));

    for(let i = 1; i < image.length-1; i++) {
        for(let j = 1; j < image[i].length-1; j++){
            
            bluredImage[i-1][j-1] = Math.floor((
                    image[i-1][j-1] + image[i-1][j] + image[i-1][j+1] +
                    image[i][j-1]   + image[i][j]   + image[i][j+1]   +
                    image[i+1][j-1] + image[i+1][j] + image[i+1][j+1]