My APEX cheatbook (For Newbies?)

Data Convertion.
- To String: String.valueOf(data);
- To Integer: Integer.valueOf(data);

Stringified(Serialized) JSON to Apex Data.
private static void doSomething(String JSONString) {
  Map<String, Object> myJSON = (Map<String, Object>) JSON.deserializeUntyped(JSONString);
  Integer something = myJSON.get('key');
}

Execute Apex Class from Browser Client.
Apex Class:
Global with sharing class SomeClass {
  // Dummy constructer
  public SomeClass() {}

  // Important, without RemoteAction, it wont work
  @RemoteAction
  public static String someFunction() {
    return 'success';
  }
}

Browser Client Side(JavaScript):
<apex:page controller="SomeClass">
<script>
SomeClass.someFunction(function(result, event) {
  console.log(result); // outputs 'success';
});
</script>
</apex:page>


To be continue...?