mk

Estimated reading time: 2 minutes

jasvascript

it is scripting language which alive the html. it’s first name was liveScript . that time java was more popular so named JavaScript. Now no relation with java . javascript - echmaScript age.

Operators

typeof

typeof 54 //number
typeof 'kamal' //number

use strict

This is echmascript 5 feature .

'use strict';

requre

var collect = require(collect.js)

call and apply

// Call() takes comma-separated arguments, ex:
.call(scope, arg1, arg2, arg3)
// and apply() takes an array of arguments, ex:
.apply(scope, [arg1, arg2, arg3])

call

let name = (...t) => {
  console.log(t);
}
name.call(name, "kamal","jamal");
// [kamal,jamal]

apply

let name = (...t) => {
  console.log(t);
}
name.apply(name, ["kamal","jamal"]);
// [kamal,jamal]

bind

let name = (t,me,...other) => {
  console.log(`${t} ${me}`);
  console.log(other);
}

let bName = name.bind(name,"I am", "jamal");
bName("kamal","maruf","sadia")
// I am jamal
// [ 'kamal', 'maruf', 'sadia' ]

mk