避免取值時出現Cannot read property 'xx' of undefined
本文來自個人博客，歡迎你們去GitHub上star個人博客node 咱們在取值特別是鏈式取值的時候，經常會遇到Cannot read property 'xx' of undefined的錯誤，如何避免這種狀況的發生呢？這裏有幾種方法以供參考git 使用成熟的庫方法 這是最簡單的一種手段：只用引入lodash，使用_.get方法；或者引入Ramda，使用R.path方法，咱們就能規避出現上述錯誤的
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相關文章
- 1. 避免取值時出現Cannot read property 'xx' of undefined
- 2. js 中出現 Cannot read property 'XXX' of undefined
- 3. Cannot read property '_withTask' of undefined
- 4. TypeError: Cannot read property 'compilation' of undefined
- 5. "TypeError: Cannot read property ‘_wrapper’ of undefined"
- 6. TypeError: Cannot read property 'key' of undefined
- 7. TypeError Cannot read property ‘nativeElement’ of undefined
- 8. TypeError: Cannot read property 'split' of undefined
- 9. Cannot read property 'get' of undefined
- 10. Cannot read property 'READURL' of undefined