神仙打鼓有時錯之--javascript 檢查文字是否為數字所組成--stackoverflow篇

錯誤示範

https://stackoverflow.com/questions/175739/built-in-way-in-javascript-to-check-if-a-string-is-a-valid-number (2000+個 up vote)

正確解答

https://stackoverflow.com/questions/4434076/best-way-to-alphanumeric-check-in-javascript (80+)

https://lowrey.me/test-if-a-string-is-alphanumeric-in-javascript/

我也被這個雷到，今天才發現，花了老子兩年才發現這個bug…

話說回來，測試真的很重要，tdd = test driven development ROCKS!!
話說回來，測試真的很重要，tdd = test driven development ROCKS!!
話說回來，測試真的很重要，tdd = test driven development ROCKS!!