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Quid est AJAX? Patria syntaxis forma? Quid interest inter jQuery comparatum AJAX?

2024-07-12

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ajax plenum nomen Asynchronous JavaScript et XML (asynchronous " JavaScript et XML) 

AJAXTechnology evolutionis interreti est ad creandas applicationes interactivas.Maxime nucleus dependentiae est obiectum XMLHttpRequest a navigatro provisum HTTP Petitio et accipere HTTP responsio. Consequi commercium cum servo sine pagina refrigerium.

AJAX vernacula syntaxis format:

  1. let xhr = new XMLHttpRequest();
  2. xhr.open('get','js/index.json',true);
  3. xhr.send();
  4. xhr.onreadystatechange = function() {
  5. if (xhr.readyState == 4 && xhr.status == 200) {
  6. let text = xhr.responseText;
  7. console.log(text);
  8. let data = JSON.parse(text);
  9. console.log(data);
  10. }
  11. };
Aiax quomodo utatur;
1. crea XMLHttpRequest object
2. Utere aperta methodo ad exprimendam electronicam, rationem ac rationem petendam.
3. Mitte modum utere ut mittat petitionem.
Modus acquirendi exigit parametros ad finem Domicilii plicando et parametros scindendo. Exemplum: 'index.php?name=张三&age=18'
Methodus post- parametri in mittere potest (). Exemplum: mitte ('nomen=张三&age=18')
4. Liga onreadystatechange eventum determinare status status et status.
5. Accipe datam et utere per conversionem json.

 

jQuery AJAX fasciculatum praebet quae celerior et usui in evolutione inceptis apta est.

jQuery syntaxin format:

  1. $.ajax({
  2. type: "GET",
  3. url: 'js/exercise.json',
  4. data: {},
  5. headers:'',
  6. datatype:'',
  7. async:'',
  8. success: function(result) {
  9. console.log(result);
  10. data = result;
  11. },
  12. Error: function(e) {
  13. console.log(e.status);
  14. console.log(e.responseText);
  15. },
  16. });