Here are some Programming basics you need to know – Part 01. HTTP Methods, HTTP Status Codes, Event in JavaScript, JavaScript Array Examples.
01. HTTP Methods
- GET – Request some data from a server
- POST – Submits a new resources to a server
- PUT – updates a resource on the server
- DELETE – delete a resource on the server
- PATCH – Updates a resource on the server partially
- CONNECT – Establishes a tunnel to the serve
- TRACE – Performs a message loop-back test to the target resource.
- HEAD – Same as GET, but doesn’t request for a repository body
- OPTIONS – Describes the communication options for the target resource
02. HTTP Status Codes
1XX Informational HTTP status codes
- 100 – Continue
- 101 – Switching Protocols
- 102 – Processing
2XX Success HTTP status codes
- 200 – OK
- 201 – Created
- 202 – Accepted
- 203 – Non-authoritative Information
- 204 – No Content
- 205 – Reset Content
- 206 – Partial Content
- 207 – Multi-Status
- 208 – Already Reported
- 226 – IM Used
3XX Redirection HTTP status codes
- 301 – Multiple Choices
- 302 – Moved Permanently
- 303 – Found
- 304 – See other
- 305 – Not Modified
- 306 – Use Proxy
- 307 – Temporary Redirect
- 308 – Permanent Redirect
4XX Client Error HTTP status codes
- 400 – Bad Request
- 401 – Unauthorized
- 402 – Payment Required
- 403 – Forbidden
- 404 – Not Found
- 405 – Method Not Allowed
- 406 – Not Acceptable
- 407 – Proxy Authentication Required
- 408 – Request Timeout
- 409 – Conflict
- 410 – Gone
- 411 – Length Required
- 412 – Precondition Failed
- 413 – Payload Too Large
- 414 – Request-URI Too Long
- 415 – Unsupported Media Type
- 416 – Requested Range Not Satisfiable
- 417 – Expectation Failed
- 418 – I am Teapot
- 421 – Misdirected Request
- 422 – Unprocessable Entity
- 423 – Locked
- 424 – Failed Dependency
- 426 – Upgrade Required
- 428 – Precondition Required
- 429 – Too Many Requests
- 431 – Request Header Fields too long
- 444 – Connection Closed Without Response
- 451 – Unavailable for Legal Reasons
- 499 – Client Closed Request
5XX Server Error HTTP status codes
- 500 – Internal Server Error
- 501 – Not Implemented
- 502 – Bad Gateway
- 503 – Service Unavailable
- 504 – Gateway Timeout
- 505 – HTTP Version Not Supported
- 506 – Variant Also Negotiates
- 507 – Insufficient Storage
- 508 – Loop Detected
- 510 – Not Extended
- 511 – Network Authentication Required
- 599 – Network Connect Timeout Error
03. Events in JavaScript | Some Programming basics you need to know – Part 01
- Mouse – onClick, onContextmenu, ondblcick, onmousedown, onmouseenter, onmouseleave, onmousemove, onmouseover, onmouseout, onmouseup
- Keyboard – onkeydown, onkeypress, onkeyup
- Frame – onabort, onbeforeunload, onerror, onhashchange, onload, onpagehide, onpageshow, onresize
- Drag – ondrag, ondragend, ondragenter, ondragleave, ondragover, ondrop
- Clipboard – oncopy, oncut, onpaste
- Media – onabort, onended, onerror, onpause, onplay, onplaying, onseeking, onratechange
04. JavaScript Array example 01 | Some Programming basics you need to know – Part 01
[ 1, 2, 3 ].reduce(( x , y ) => x * y ) //6
[ 1, 2, 3 ].length //3
[ 1, 2, 3 ].every( x => x < 10 ) //true
[ 1, 2, 3 ].some( x => x < 2 ) //true
[ 1, 2, 3 ].length //3
[ 1, 2, 3 ].every( x => x < 10 ) //true
[ 1, 2, 3 ].some( x => x < 2 ) //true
05. JavaScript Array example 02 | Some Programming basics you need to know – Part 01
[ ‘a’ , ‘b’ ].concat([‘c’]) //[‘a’ , ‘b’ , ‘c’]
[ ‘a’ , ‘b’ ].join([‘-‘]) //’a-b’
[ ‘a’ , ‘b’ , ‘c’ ].slice(1) //[‘b’ , ‘c’ ]
[ ‘a’ , ‘b’ , ‘c’ ].indexOf(‘b’) //1
[ ‘a’ , ‘b’ , ‘c’ ].lastIndexOf(‘b’) //2
[ 1 , 2 , 3 ].map( x => x * 2 ) //[2, 4, 6 ]
[ 2, 15 , 3 ].sort() //15, 2, 3 ]
[ 1 , 2 , 3 ].reverse() //[3 , 2, 1 ]
[ ‘a’ , ‘b’ ].join([‘-‘]) //’a-b’
[ ‘a’ , ‘b’ , ‘c’ ].slice(1) //[‘b’ , ‘c’ ]
[ ‘a’ , ‘b’ , ‘c’ ].indexOf(‘b’) //1
[ ‘a’ , ‘b’ , ‘c’ ].lastIndexOf(‘b’) //2
[ 1 , 2 , 3 ].map( x => x * 2 ) //[2, 4, 6 ]
[ 2, 15 , 3 ].sort() //15, 2, 3 ]
[ 1 , 2 , 3 ].reverse() //[3 , 2, 1 ]
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