vvedenie v javascript

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tema 2: iniţiere în limbajul html tema 11. vvedenie v javascript soderjanie vvedenie v web-programmirovanie vvedenie v javascript obshee opisanie js sintaksis primeri ponyatie „web-programmirovanie” v obshem predpolagaet programmirovanie saytov dlya interneta (globalnaya set) ili intraneta (lokalnaya set) nekotorie spetsialisti chasto ispolzuyut ponyatie «veb-razrabotka» (“web development”), kotoraya ssilaetsya na: kodirovanie i markirovke, analiz oblasti dlya kotoroy razrabativaetsya sayt proektirovanie resheniya menedjment (planirovanie i upravlenie) soderjimogo sayta napisanie klientskix skriptov i skriptov na storone servera nastroyka bezopasnosti seti i veb-serverov razvitie elektronnogo biznesa oblasti primeneniya veb-programmirovaniya veb-programmirovanie otnositsya k razrabotke staticheskix saytov (html+css), kotorie, obichno imeyut rasshirenie .html veb-programmirovanie otnositsya i k razrabotke dinamicheskix saytov – slojnie web-prilojeniya ili sistemi, elektronniy biznes, sotsialnie seti (facebook) etc. oblasti primeneniya veb-programmirovaniya klient-servernaya model klient-server eto vichislitelnaya ili setevaya arxitektura, v kotoroy zadaniya ili setevaya nagruzka raspredeleni mejdu postavshikami uslug, nazivaemimi serverami, i zakazchikami uslug, nazivaemimi klientami fizicheski klient i server — eto programmnoe …

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te limitată în timp sesiunea oferă posibilitatea serverului de a distinge clienţii mai multi clienti fac mai multe cereri simultan, iar serverul trebuie sa stie ce cereri vin şi de la care clienţi sesiunea va permite asocierea unei stări necesară comunicării client-server * klient-servernaya model primeri: internet-banking proverka el. pochti google-translate set kompyuterov web-skripti web-skript eto programmnie kodi dlya kompyutera sozdannie s tselyu dinamizatsii web-stranitsi primer (istochnik: microsoft): web-skript mojno ispolzovat dlya vklyucheniya schetchika, schitayushiy posetiteley – ego znachenie rastet pri kajdom novim poseshenii sayta web-skript mojno ispolzovat dlya vklyucheniya schetchika, schitayushiy v ubivayushem poryadke dlya kakogo-to spetsialnogo sobitiya: „ostalos tolko x dney”, gde x umenshaetsya na 1 kajdiy den gostevie knigi, doski ob'yavleniy, golosovaniya i t.d web-skripti obichno web-skripti vipolnyayutsya veb-brauzerom, kogda veb-stranitsa otkrivaetsya dlya otobrajeniya informatsii sgenerirovannie stsenariyami skripta ili vipolnyayutsya na servere sozdanie veb-skriptov trebuet znaniy v oblasti programmirovaniya skripti v veb-programmirovanie mogut bit: client-side (client-side scripts) …

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ripti ne trebuyut dopolnitelnogo programmnogo obespecheniya na servere im neobxodimo chtobi veb-brauzer polzovatelya, ponimal yazik stsenariev, na kotorix oni bili napisani scipting yaziki na storone klienta: javascript, actionscript, vbscript, i t.d. ajax yavlyaetsya vajnim dopolneniem k yaziku javascript dhtml programmirovanie na storone klienta yavlyaetsya vajnoy chastyu kontsepta dynamic-html (dhtml) dhtml ne yavlyaetsya yazikom programmirovaniya v dhtml - ispolzuyutsya neskolko texnologiy vmeste, dlya sozdaniya interaktivnix i animirovannix veb-saytov: yazik markirovki (kak html), yazik dlya client-side skriptinga (kak naprimer javascript), yazik opisivayushiy stili stranits sayta (kak css), dom (document object model) dlya html (http://www.w3schools.com/js/js_htmldom.asp) dynamic html eto vozmojnost/metod predstavleniya stranits sayta kontent stranitsi ne menyaetsya!!! primechanie: ne putayte ponyatie dhtml s ponyatiem dinamicheskiy sayt! dinamicheskie web-stranitsi dinamicheskaya stranitsa eto veb-stranitsa, sgenerirovannaya programmno, v otlichie ot statichnoy stranitsi, kotoraya yavlyaetsya prosto faylom, lejashim na servere server generiruet html-kod dinamicheskoy stranitsi dlya obrabotki brauzerom dinamicheskie stranitsi obichno obrabativayut i vivodyat informatsiyu iz bazi dannix …

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vipolnyayutsya na servere, i generiruyut odni i te je vixodi, v ne zavisimosti ot brauzera klienta, ego operatsionnoy sistemi i dr. dopolnitelno: http://www.w3.org/wiki/how_does_the_internet_work#static_vs._dynamic_web_sites https://www.ischool.utexas.edu/~hristova/ia/ http://codingcraft.ru/web-programming.php java script - obshee javascript yavlyaetsya yazikom programmirovaniya (odin iz samix populyarnix), ispolzuemiy dlya programmirovaniya v setyax kompyuterov, serverov, smart-fon-ov i t.d. pochti vse sovremennie html stranitsi ispolzuyut javascript izuchenie yazika javascript neobxodimo potomu, chto: html neobxodimo dlya opredeleniya soderjaniya veb-stranits css – dlya opredeleniya stilya veb-stranitsi javascript – dlya programmirovaniya povedeniya sayta ispolzovanie java script dom html (document object model) eto ofitsialniy standart konsortsiuma w3c, ispolzuemiy dlya dostupa k html-elementu kakogo-to html-dokumenta "the w3c document object model (dom) is a platform and language-neutral interface that allows programs and scripts to dynamically access and update the content, structure, and style of a document." javascript mojet izmenit kontent html-dokumenta manipuliruya s dom html javascript mojet bit ispolzovan dlya: izmeneniya html-elementov, udaleniya html-elementov, sozdanie html-elementov, kopirovanie html-elementov …

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t.src="galben.gif"; } else { element.src="rosu.gif"; } } rezultat primera do najatiya: posle…: ispolzovanie java script izmenenie stiley css v html-dokumentax primer ispolzovaniya js primer izmeneniya kontenta javascript mojet izmenit kontent kakogo-to html-elementa: najmi na knopku! posmotri rezultat! function functie() {document.getelementbyid("et").style.fontsize = "25px";} rezultat primera do najatiya knopki: posle: drugie ispolzovaniya java script proverka vvoda dannix vstavka dati, dnya nedeli, vremeni i t.d. upravlenie sobitiyami: najatie kakoy-to knopki, peredvijenie mishi, koordinati mishi i t.d. vivod preduprejdeniy vizov i vipolnenie kakix-to funktsiy i t.d., i t.p. teg „script” 1. ispolzuetsya dlya vstavki javascript-ov soderjanie (kodi javascript) ili 2. ispolzuetsya dlya opredeleniya ssilki k vneshnemu faylu so skriptami vozmojnosti opredeleniya i vstavki skriptov javascript-i mojno pomestit za predelami (vne) html-dokumenta predstavlyayut otdelnie fayli soderjashie skripti, kotorie mojno ispolzovat v odnoy ili neskolkix veb-stranitsax fayli so stsenariyami javascript imeyut rasshirenie .js v html-dokumente delaetsya ssilka na fayl soderjashiy skripti, ispolzuya v tege atribut “src”. …

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tema 2: iniţiere în limbajul html tema 11. vvedenie v javascript soderjanie vvedenie v web-programmirovanie vvedenie v javascript obshee opisanie js sintaksis primeri ponyatie „web-programmirovanie” v obshem predpolagaet programmirovanie saytov dlya interneta (globalnaya set) ili intraneta (lokalnaya set) nekotorie spetsialisti chasto ispolzuyut ponyatie «veb-razrabotka» (“web development”), kotoraya ssilaetsya na: kodirovanie i markirovke, analiz oblasti dlya kotoroy razrabativaetsya sayt proektirovanie resheniya menedjment (planirovanie i upravlenie) soderjimogo sayta napisanie klientskix skriptov i skriptov na storone servera nastroyka bezopasnosti seti i veb-serverov razvitie elektronnogo biznesa oblasti primeneniya veb-programmirovaniya veb-programmirovanie otnositsya k razrabotke sta...

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