dojo需要什麼功能？

Question

// Load the dom module 
require(["dojo/dom"], function(dom){ 
}); 

我知道當dom模塊被加載時調用該函數，但我不清楚函數中的代碼是什麼。它是我的頁面上所有javascript代碼的容器嗎？

Answer 1

該函數是回調函數，當加載器加載所有你需要的模塊時會調用它。

如果我有

require(["dojo/_base/ready", "dojo/_base/declare"], function(ready, declare) { 

    // do something with declare and ready 

}); 

AMD將會加載準備和申報。這可能需要AMD向服務器進行異步回調。一旦AMD加載模塊，它會調用您傳遞給require方法的函數。

我的回答在Dojo Builds...? What now?有關於AMD API的更多細節。

---

回答評論中的問題。以下兩條語句可以位於頁面上的任何位置。

<script type="text/javascript"> 
require(["dojo/_base/ready", "dojo/_base/declare"], function(ready, declare) { 
    // do something with declare and ready 
}); 
</script> 

<script type="text/javascript"> 
require(["dojo/_base/ready", "dojo/_base/declare", "dijit/form/Button"], 
    function(ready, declare, Button) { 
    // Assuming this is the second statement to be executed, AMD will 
    // realize that ready and declare have previously been loaded, 
    // so it will use the previously loaded modules, load the Button module, 
    // and then execute the callback 

    // do something with declare, ready, and Button 
}); 
</script>