JAVASCRIPT MEMORY MANAGEMENT

Transcript

1. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...}
2. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...}
3. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Employee:new this name “John” salary 5000 sales 5 Object
4. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Employee:new this name “John” salary 5000 sales 5 Object name “John” salary undefined sales undefined bonus undefined
5. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Employee:new this name “John” salary 5000 sales 5 Object name “John” salary 5000 sales undefined bonus undefined
6. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Employee:new this name “John” salary 5000 sales 5 return Object name “John” salary 5000 sales 5 bonus undefined
7. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 john Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Object name “John” salary 5000 sales 5 bonus undefined
8. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 john Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Object name “John” salary 5000 sales 5 bonus undefined findEmployeeBonus salary 5000 noOfSales 5 bonusPercentage undefined bonus undefined
9. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 john Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Object name “John” salary 5000 sales 5 bonus undefined findEmployeeBonus salary 5000 noOfSales 5 bonusPercentage undefined bonus undefined getBonusPercentage salary 5000 percentage undefined
10. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 john Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Object name “John” salary 5000 sales 5 bonus undefined findEmployeeBonus salary 5000 noOfSales 5 bonusPercentage undefined bonus undefined getBonusPercentage salary 5000 percentage 500
11. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 john Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Object name “John” salary 5000 sales 5 bonus undefined findEmployeeBonus salary 5000 noOfSales 5 bonusPercentage undefined bonus undefined getBonusPercentage salary 5000 percentage 500 return 500
12. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 john Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Object name “John” salary 5000 sales 5 bonus undefined findEmployeeBonus salary 5000 noOfSales 5 bonusPercentage 500 bonus undefined
13. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 john Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Object name “John” salary 5000 sales 5 bonus undefined findEmployeeBonus salary 5000 noOfSales 5 bonusPercentage 500 bonus 2500
14. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 john Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Object name “John” salary 5000 sales 5 bonus undefined findEmployeeBonus salary 5000 noOfSales 5 bonusPercentage 500 bonus 2500 return 2500
15. V8 Memory usage Heap memory Stack memory Global frame getBonusPercentage findEmployeeBonus Employee BONUS_PERCENTAGE 10 john Function getBonusPercentage(...) {...} Function findEmployeeBonus(...) {...} Class Employee {...} Object name “John” salary 5000 sales 5 bonus 2500