PHP var_dump like¶

function var_dump(obj, alertTrue, consoleLog) {
    var out = '';

    if(typeof(obj) === "object"){
        for (var i in obj) {
            out += i + ": " + obj[i] + "\n";
        }
    }
    else{
        out = obj;
    }

    if(alertTrue == true)
        alert(out);
    else if(consoleLog == true)
        console.log(out);
    else{
    //or, if you wanted to avoid alerts...

    var pre = document.createElement('pre');
    pre.innerHTML = out;
    document.body.appendChild(pre)
    }
}

YYYYMMDDHHMMSS to date¶

function stringYYYYMMDDHHMMSSToDate(string) {
    string = string.split('');
    date = string[6] + string[7] + "/" + string[4] + string[5] + "/" + string[3] + string[1] + string[2] + string[0] + " à " + string[8] + string[9] + ":" + string[10] + string[11] + ":" + string[12] + string[13];
    return date;
}

RGB to BGR and vice versa¶

Used in Google Earth for example

function RGBtoBGR(RGB)
{
    BGR = RGB.split('');
    BGR = BGR[4] + "" + BGR[5] + "" + BGR[2] + "" + BGR[3] + "" + BGR[0] + "" + BGR[1];
    return BGR;
};


function BGRtoRGB(BGR)
{
    RGB = BGR.split('');
    RGB = RGB[4] + "" + RGB[5] + "" + RGB[2] + "" + RGB[3] + "" + RGB[0] + "" + RGB[1];
    return RGB;
};

Distance between two coordinates¶

function distance2Points(latA, longA, latB, longB) {
    var kEarthRadiusKms = 6378.164;  //rayon equatorial de la Terre

    var dLat1InRad = latA * (Math.PI / 180.0);
    var dLong1InRad = longA * (Math.PI / 180.0);
    var dLat2InRad = latB * (Math.PI / 180.0);
    var dLong2InRad = longB * (Math.PI / 180.0);

    var dLongitude = dLong2InRad - dLong1InRad;
    var dLatitude = dLat2InRad - dLat1InRad;

    var a = Math.pow(Math.sin(dLatitude / 2.0), 2.0) +
            Math.cos(dLat1InRad) * Math.cos(dLat2InRad) *
            Math.pow(Math.sin(dLongitude / 2.0), 2.0);

    // Intermediate result c (great circle distance in Radians).
    var c = 2.0 * Math.atan2(Math.sqrt(a), Math.sqrt(1.0 - a));

    // Distance.            
    dDistance = kEarthRadiusKms * c;
    // resultat en kilomètres
    return Math.abs(dDistance);
}

Convert degree to radian¶

if (typeof (Number.prototype.toRad) === "undefined") {
    Number.prototype.toRad = function () {
        return this * Math.PI / 180;
    }
}

Convert radian to degree¶

if (typeof (Number.prototype.toDeg) === "undefined") {
    Number.prototype.toDeg = function () {
        return this * 180 / Math.PI;
    }
}