He aha te mea JavaScripts? mahi JavaScript Basic

Tukutuku-hōtuhi he hōtaka e kua oti te tuhituhi tika i roto i te html-waehere ranei tika i roto i te kōnae, i te mea atu pai. kua oti te tuhituhi ēnei hōtaka i roto i te JavaScript. Ko te kupu, motu ke i te meka e taua Javascripts, ka taea e tatou te mea e ko te reira te reo hōtaka tikanga e te.

Kei te lau Javascript i te pūtirotiro, a ka rere i te faaiteraa tuhia, ka whakahaere, e whakatakotoria nei e runga ake te whārangi. JavaScript i runga i tou wetereo he rite ki te reo hōtaka pērā i Java, C ++ ko C.

au, JavaScript tona ahua ki te whanaketanga o taua kamupene rite Sun Microsystems (Oracle) me Netscape (Mozilla). Ko te ingoa taketake o te reo, ko LiveScript. Heoi, e tika ana ki te meka e i taua wa ko te Java reo tino hira i te kamupene Sun Microsystems, tari hokohoko Netscape kamupene o, i whakaritea e te reira ki te huri i te ingoa o te reo i roto i JavaScript. A, no te oti tenei kua tatau e tāpiri tenei taahiraa te reo rongonui. Hoki, motu ke i te meka e taua Javascripts, kia tuhia te reira e Java me JavaScript he reo e rua rerekē.

ECMA-262 ko te paerewa mōhiohio o te reo. Ko te ingoa o te reo JavaScript - ECMAScript.

Hoki te ako o tenei reo ka hei mōhiotanga whai hua i mua e pā ana ki CSS me Html. Ki te aroaro o tenei momeniti e kore koutou e mohio e pā ana ki CSS me Html, kia waiho reira tonu waia.

Rāhuitanga me āheinga JavaScript

puta nga āhuatanga e whai ake nei i roto i te tono i runga i te tukutuku-whārangi o te hōtuhi [nekehia]:

• Tāpiri i te momo o ngā pānga hākoritanga, e kore e nei i mohio e te tikanga o Html me CSS.
• Te āhei ki te huri i te Html huānga ihirangi me te tāpiri tūtohu hou i waho reloading te whārangi.
• Te aro ki te kaupapa (whakautu ki te tāuru kaiwhakamahi) - te tukatuka o ngā pēhi i runga i te papapātuhi, me te pehu kiore.
• Whakatinanatanga o enei arowhai, i whakaurua nei i roto i nga mara o te puka i mua i te tuku i te reira ki te tūmau. te whakaiti i tenei te kawenga i runga i te tūmau, me te hohoro ake te pae mahi.
• Whakatau i te putanga o te pūtirotiro me te uta i te whārangi e hiahiatia ana i runga i tenei.

e kore te mea he rārangi tino o kaha hōtuhi, e kua tuhituhia i roto i tenei reo tenei, JavaScript mahi i te tikanga nui whānui.

I tua atu ki enei āhuatanga, i reira he whāititanga o te whakamahi tauari:

• Kahore he wāhi ki te kōnae e kua whakanohoia ki runga ki te rorohiko o te kaiwhakamahi. I roto i te whānui, e kore e whai wāhi i waho i te whārangi tukutuku iho. pea te okotahi anake te pihikete e taea te pānui i, ka tuhituhia ki JavaScript. Kei te nuinga o te wā e hiahiatia ana anake Ahanoa o tenei momo mo whārangi kawenga tere.
• Kahore he pea o te uiui ripeka pae, arā, te whiwhi uru ki ngā whārangi Tukutuku e te hunga i runga i te rohe rerekē, ara, ki te he tuwhera i roto i te ripa pātata ratou.
• Kahore he ara ki te kati i te ripa, me matapihi e puare ki reira.
• Kahore he pea o te tiaki o te kuputuhi taketake i te whārangi, me te aukati ki te tārua whakapakoko kuputuhi ranei i te whārangi. rau tenei te taea ki te tāpiri i te tahi mau here e tukua JavaScript mahi.

He taua here i roto i te tahi mau rave'a uaua ki te mahia waehere kino.

He aha te mea Javascripts?

Ka rite ki kï ahau i runga, JavaScript - he reo e homai te tauwhiti ki ngā whārangi tukutuku. Ki te awhina o tenei reo ko nga tono e ngā i roto i te Html-waehere. Hei tauira, ki tonu i te taha o te kaiwhakamahi te puka rēhita te uiui ranei. Kei te maha raruraru JavaScript ki Java, engari i waenganui i enei reo iti i roto i te noa.

Etahi ara whakataurite ki ētahi atu reo JavaScript Ruby, Whaiaro, maori. Otiia ko reira he reo motuhake.

Mā te JavaScript

Mā te JavaScript, ka taea e hanga e koe huringa ki te whārangi, te huri i te āhuatanga o te kāhua, tāpiri tango tūtohu ranei. Ko reira ano hoki e taea ki te ako e pā ana ki ngā mahi a tona kaiwhakamahi i runga i te whārangi (heke ranei ake i te wāhi mahi o te mata, pakō ki te kiore, pēhia tetahi taviri, te whārangi panuku). Ko taea ki te whai wāhi ki tetahi huānga Html-waehere me te whawhe ki tenei huānga. Ko te kupu, ko te kupu whakahoki ki te pātai "He aha te mea JavaScripts?» E te whai wāhi ki te tiki raraunga waho reloading te whārangi, karere tāuru, te whakatakoto pānui ranei pihikete me te mahi maha atu mahi.

Ko te pūtake o te ahurei o JavaScript

Ko te pūtakenga matua o tenei reo ko e kua reira te tautoko o tata katoa pūtirotiro me he kōmitimiti tonu ki a ratou. mahi katoa i roto i JavaScript e tino māmā. Kahore he kahore atu hangarau e wāhi taua painga katoa. Hei tauira, i reira he kahore ripeka-pūtirotiro, kahore e tautokona ratou i roto i pūtirotiro katoa (te reira xul, ActiveX, VBScript). Ano, i reira e te hunga e kore e e tino whakauru ki te pūtirotiro. Te reira i Silverlight, Flash, Java. I reira i reira he he whanaketanga nui o tenei hangarau, a kei te whakawhanakehia āhuatanga JavaScript 2.

programmmirovaniya reo Alternative

Ko reira e he iti JavaScript. I roto i tenei take, ka āwhina i nga reo hōtaka e whai ake nei.

Java

Ko te reo tino whakamahia - Java. Ki te awhina o te reo whakaahuatia e hātepe matatini, engari e kore te reira e hiahiatia tonu i runga i te paetukutuku tikanga. Hoki tenei take, ki te wa roa tiki java-applet`y me te whai i te nui.

Flash

Mai te timatanga, i hangaia te reo o Flash rite te ripeka-brazuerny me ki te hanga i ngā rongorau. Hei tauira, ki te hanga i ngā wāhi pāhekoheko online, kēmu, kara, kaitākaro mō te oro me te ataata. I roto i te tahi atu mea, mā te whakamahi i Flash ki te waihanga i te turanga (hononga whatunga), ka taea e koe te mahi tahi me te pāpāho, ki te rokiroki i ngā kore e e hiahia ana ki te tonoa tono ki te tūmau. He he he taputapu whanaketanga kauwhata watea hoki Flash.

Ki te whakarite tatou i nga tōnounou o Flash ko JavaScript, e he rawa rerekē ahanoa, te rerekētanga matua o Flash ko tona fakahokohoko rawakore i engines rapu. Tenei he no te mea e haere engines rapu mō ngā hononga Html. Ano kahore he kaha ki te tīpako kuputuhi e he i Flash ipu.

Silverlight, Vbscript, JavaFX, xul

Hei kīnaki JavaScript kaha ka hanga atanga me kōrero, te whakamahi o te hangarau Silverlight, Vbscript, JavaFX, xul.
E whakamahia ratou tonu atu uaua atu Flash me JavaScript. Ki te whakanui i te āhuatanga o ia o ratou e taea te mea i te whai ake:

- xul - whakamahia i roto i te whakaahuatanga o ngā tono papamahi me atanga. Ko te mea taea anake i roto i te take o te hōtaka e Mozilla.

- JavaFX - anake mahi i runga i te rorohiko ki Java, no te mea he reira i roto i te tua ki te reo.

- Vbscript - i whakawhanakehia e te Microsoft. mahi ia rite te pūtake mo te Visual Basic. e kore e tenei reo whakawhanake i roto i tetahi ara, i roto i enei ra kei te whakauaua ake whakamahia, i runga i te tukua JavaScript rānei.

Silverlight - I whakawhanakehia e te Microsoft rite te whakataetae ki Flash. Ia e kore e hoki i nui rongonui mai Ka taea e aho JavaScript whakarato nui ake atu i te hōtuhi whārangi.

Me pēhea te ki te taea JavaScript me aha te hapa JavaScript

Na ko reira e tika ana ki te whakawhiti kōrero mō ngā raruraru rā o ngā kaiwhakamahi i runga i te whatunga. I teie mahana, ake me te ake pinepine tupu te reira e te kaiwhakamahi i muri i te haere ki tona whārangi i roto i te pāpori. kite whatunga i roto i te matapihi o runga he karere hapa "e kore te JavaScript whakahohea", "hoki te mahi tika o te pae taea JavaScript», «JavaScript hapa». Me pēhea te ki te whakatika i te reira - te mea nui, no te mea i reira e fifi ki te uta ataata, me te whakaahua o te kaiwhakamahi.

Me pēhea e taea ai e ahau JavaScript i Mozilla Firefox

Ki te te te mahi te kaiwhakamahi i roto i te Mozilla, e hiahia ana koe ki te haere ki "Ngā Utauta", ka ki "Tautuhinga". Na, i runga i te ripa "tirotiro" e hiahia ana koe ki te tohu i te pouaka tohua "Whakamahi JavaScript".

Ka rite ki ngā JavaScript te i roto i te Google Chrom

Hei whakahohe mono JavaScript i roto i te pūtirotiro e hiahiatia te te tukanga e whai ake nei :. "Te whakatu me te whakahaere i Google Chrom" ranei, "Tautuhinga", "Arā", "raraunga Whaiaro (te whakatakoto tirotiro)", "JavaScript" Tukua pae katoa ki te whakamahi i JavaScript (tūtohutia).

Me pēhea e taea ai e ahau JavaScript i Opera

Hei whakahohe mono JavaScript i roto i te pūtirotiro ranei e hiahiatia ki te mahi i te whai ake:

- Pēhia te kī F12.

- Kōwhiri i te kōwhiringa "Whakahohea JavaScript".

Ka rite ki ngā JavaScript te i roto i te IE ( "Internet Explorer")

Hei whakahohe mono JavaScript i roto i "Internet Explorer" ranei, e hiahia ana koe ki te mahi i te whai ake: "Utauta", "Kōwhiringa Ipurangi", "Haumarutanga" ripa, "Whiriwhiria te Internet rohe", "Ritenga Taumata" pātene, tīpako "tauari", "Tukua hōtuhi."

JavaScript i roto i te VC

Tino rongonui i roto i te whatunga pāpori Kihi "VKontakte" pinepine he hakari hitimahuta. Piki, kaiwhakamahi "VKontakte" amuamu e pā ana ki te ngoikore ki te whakarongo ki te audio, te ngoikore ki te tiro i te ataata ranei.

Hei whakaoti i tēnei raruraru titau JavaScript hapa ako i runga i te whatunga "VKontakte".

He aha te mea JavaScript VK hape?

tae mai te kaiwhakamahi i te whārangi i runga i te whatunga pāpori, ka tamata ki te tīmata i tētahi ataata kōnae ororongo ranei, engari ka kitea i roto i te kokonga maui o runga o te tuhituhinga «JavaScript hapa: e kore e tautuhi initAddMedia». puta tenei karere, ka te hapa
«[Tangohia] initAddMedia».

Methods ki te whakaoti i te raruraru ki te hapa i roto i te whatunga pāpori "VKontakte":

- Tuatahi, e hiahia ana koe ki te haere ki "Tīmata," "Taku Rorohiko" kōpaki me Windows. Na ka peke ki te wāhanga i roto i te taata faahoro kōpaki pūnaha32. Na i roto i te kōpaki etc.

- I roto i te waenganui o te tau iti o ngā kōnae i roto i te kōpaki e hiahia ana koe ki te tīpako i te kōnae mano.
Katahi ka whakatuwheratia te kōnae kei te whakamahi i te "Pukatuhi". rite tenei titiro reira: i runga i te kōnae i te mano whai koe ki te pēhi i te pātene kiore matau, me te tīpako "Open Ki te." Na ka taea e koe te tīpako i te "Kupu Editor PukaKupu».

I muri te whakatuwhera i te kōnae e hiahia ana koe ki te titiro i te kōnae ki te lekooti o 127.0.0.1 localhost. He hira Tetahi atu ngā tāurunga me arai, me te ārai i te mahi pūmau o ngā kōnae oro me ataata anake. He mea tika ki te tango i te katoa te kōrero katoa i te kōnae, me te tārua anake te localhost tuhituhinga 127.0.0.1. Next, Me koe ki te pāwhiri "Tiaki" ka tīmata anō i tō rorohiko. ka mahi pai, no te "VKontakte" whārangi haerenga muri nga mea katoa.