Object Methods.md

#Object Function Notes

##Table Of Contents

1. General Information

2. Object Methods

1. Bind()
2. Call()
3. Apply()

.bind()

.bind() use cases

.bind() example

// A define the person let aboutJason = {name: "Jason",age: 30, location: 'Toronto'}

//B define the function and invoke this

let greetingBind = function(a,b,c) { return Welcome ${this.name} you are ${this.age} and live in ${this.location} }

//C connect the invocation of this to the object const context = greetingBind.bind(aboutJason)

//D log the object console.log(context())

.call()

.call() use cases

.call() example:

const greetingCall = function(a,b,c){
  return `Welcome ${this.name} to ${a} ${b}`
};

// C: First param in call is what we are setting 'this' too
console.log(greetingCall.call(aboutQT,'Kathmandu', 'we have great food'))

apply()

.apply() use cases

.apply() example:

const bear = {
  name: 'Oscar'
}

// the second is an array of arguements
greetingArgs = ['Calcutta','ROAAR']

const greetingApply = function(a,b,c){
  return `Welcome ${this.name} to ${a} please dont ${b}`
};

//First arguement to the ap
console.log(greetingApply.apply(bear,greetingArgs))