https://github.com/vatshayan/learn-javascript-30-day-challenge
Learn Javascript Everyday I will do one coding in javascript. New
https://github.com/vatshayan/learn-javascript-30-day-challenge
Last synced: 10 months ago
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Learn Javascript Everyday I will do one coding in javascript. New
- Host: GitHub
- URL: https://github.com/vatshayan/learn-javascript-30-day-challenge
- Owner: Vatshayan
- Created: 2023-01-01T16:54:41.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2023-01-10T18:29:36.000Z (about 3 years ago)
- Last Synced: 2025-01-15T07:28:43.033Z (12 months ago)
- Language: JavaScript
- Size: 18.6 KB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Learn-JavaScript-30-Day-Challenge
Learn Javascript Everyday I will do one coding in javascript. New
JS is case senstive !!
### some basic programming brackets knowledge :
Parenthesis also curved brackets : ()
Square Brackets or Box Brackets : []
Braces or Curly Brackets : {}
Angle Brackets or Chevrons : <>
## Day 2 concept learned
Review
Let’s take one more glance at the concepts we just learned:
Data is printed, or logged, to the console, a panel that displays messages, with console.log().
We can write single-line comments with // and multi-line comments between /* and */.
There are 7 fundamental data types in JavaScript: strings, numbers, booleans, null, undefined, symbol, and object.
Numbers are any number without quotes: 23.8879
Strings are characters wrapped in single or double quotes: 'Sample String'
The built-in arithmetic operators include +, -, *, /, and %.
Objects, including instances of data types, can have properties, stored information. The properties are denoted with a . after the name of the object, for example: 'Hello'.length.
Objects, including instances of data types, can have methods which perform actions. Methods are called by appending the object or instance with a period, the method name, and parentheses. For example: 'hello'.toUpperCase().
We can access properties and methods by using the ., dot operator.
Built-in objects, including Math, are collections of methods and properties that JavaScript provides.