201506121154_ "JavaScript authoritative Guide (sixth edition)--garbage collection mechanism, Lenin's understanding Logic Method" (p161-?)

1.

To avoid such circular reference problems, it is best to manually break the connection between the native JS object and the DOM element when you do not use them:

Code:

myobject.element = NULL;ELEMENT.O = null;

2. Isfinite (); is a finite number

3. Lenin's understanding of the logical approach:
    A. Hold and study all aspects , contacts and intermediaries of things.
    Observe things in the development, movement, and change of things.
    C. Define all human practices into the "definition" of things.
    D. Pay attention to the specificity of the truth.

201506121154_ "JavaScript authoritative Guide (sixth edition)--garbage collection mechanism, Lenin's understanding Logic Method" (p161-?)