// This is some function.

function someFunction() {

console.log("Some function.", this);

}

// This is some object.

let someObject = {

name: "someObject",

propOne: "Property One",

propTwo: 1,

funcOne: someFunction,

funcOneWindowOne: someFunction.bind(window),

funcOneWindowTwo: someFunction.bind(this),

logFunc: function() {

console.group(`${this.name} log.`)

console.log(`PropOne: ${this.propOne}`);

console.log(`PropTwo: ${this.propTwo}`);

console.groupEnd();

},

withParamsFunc: function(firstParam, secondParam) {

console.group(`${this.name} log.`)

console.log(`First param: ${firstParam}`);

console.log(`Second param: ${secondParam}`);

console.groupEnd();

}

}

// This is another object.

let anotherObject = {

name: "anotherObject",

propOne: "Property Two",

propTwo: 2

}

// This method (bind) call function in some context.

const fnAnotherObjectLog = someObject.logFunc.bind(anotherObject);

const fnAnotherObjectWithParams = someObject.withParamsFunc.bind(anotherObject);

fnAnotherObjectLog();

fnAnotherObjectWithParams("p1", "p2");

someObject.withParamsFunc.bind(anotherObject, "p1", "p2")();

// This method (call) immediately calls function.

someObject.withParamsFunc.call(anotherObject, "p1", "p2");

// This method (apply) immediately calls function, but have only two params.

someObject.withParamsFunc.apply(anotherObject, ["p1", "p2"]);