JavascriptBasics:Javascript 中经常遗漏的一些基本实用程序

JavascriptBasics 由 Ben Mc Dougall 编写 Javascript 中经常遗漏的一些基本实用程序 将在脚本或您选择和偏好的网络浏览器控制台中工作的用法示例： console . log ( 'Just testing something really cool I guess.' . startsWith ( '' ) ) ; console . log ( "Contains Test: " + 'Does this contain this?' . contains ( 'Does' ) ) ; console . log ( "Contains Test: " + '2' . contains ( 2 ) ) ; var s = '' ; console . log ( "EmptyString Test: " + s . emptyString (