Memory leakage caused by closures under IE.

Source: Internet
Author: User

In earlier versions of IE, JScript objects and COM objects use different garbage collection mechanisms.

Because the closure contains variable objects that contain functions, if our closure references

When a reference to a variable object containing a function exists as long as the anonymous function exists, the reference must exist at least once,

Therefore, the occupied memory will never be released.

We usually write an example:

function eve(){                            var ele = document.getElementById("btn");                                 ele.onclick = function(){                                         console.log( ele.id );                                     }                     }

Solution code:

function eve(){                              var ele = document.getElementById("btn");                              var id = ele.id;                                 ele.onclick = function(){                                             console.log( id );                                          };                               ele = null;                    }

 

Memory leakage caused by closures under IE.

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