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Yyds dry goods inventory three JS source code interpretation - getobjectbyproperty method

2022-07-03 23:46:00 【Xin Ran】

1. Source screenshot

#yyds Dry inventory #three.js Source code interpretation -getObjectByProperty Method _three.js

getObjectByProperty Method uses recursion
getObjectById Methods and getObjectByProperty Methods are based on getObjectByProperty Method , So the core method of obtaining objects is getObjectByProperty

2. Code testing

Minor modifications : Put... In the source code this Change to pass more than one parameter , Convenient test , Because local is not object-oriented , The source code is object-oriented

       
       //  This method uses recursion 
       
       function 
       
       getObjectByProperty(
       
       obj, 
       
       name, 
       
       value) {
       
       if (
       
       obj[
       
       name] 
       
       === 
       
       value) {
       
       //  If there is a match ,  Will come here  
       
       return 
       
       obj;
       
  }
       
       for (
       
       let 
       
       i 
       
       = 
       
       0, 
       
       l 
       
       = 
       
       obj.
       
       children.
       
       length; 
       
       i 
       
       < 
       
       l; 
       
       i
       
       ++) {
       
       const 
       
       child 
       
       = 
       
       obj.
       
       children[
       
       i];
       
       const 
       
       object 
       
       = 
       
       getObjectByProperty(
       
       child, 
       
       name, 
       
       value);
       
       if (
       
       object 
       
       !== 
       
       undefined) {
       
       return 
       
       object;
       
    }
       
  }
       
       return 
       
       undefined;
       
}
      
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3. test

       
       const 
       
       res 
       
       = 
       
       getObjectByProperty(
       
       scene, 
       
       'name', 
       
       'mySphere')
      
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