hard20 pts · first answer countsweb-performancememory

Leak from a global listener

A component adds window.addEventListener('resize', this.onResize) and removes it with window.removeEventListener('resize', this.onResize.bind(this)). Memory still grows. Why?

A.resize events cannot be removed once addedB.removeEventListener only works on documentC.bind makes a new function, so removal does nothingD.The listener is removed twice by mistake

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Leak from a global listener

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