comma-number:用逗号格式化数字

逗号号 安装 $ npm install --save comma-number 用法 const commaNumber = require ( 'comma-number' ) commaNumber ( 1000 ) // "1,000" commaNumber ( - 1000 ) // "-1,000" commaNumber ( - 1000 , '.' ) // "-1.000" commaNumber ( 1000.12 ) // "1,000.12" commaNumber ( - 1000.12 ) // "-1,000.12" commaNumber ( '-1000,12' , '.' , ',' ) // "-1.000,12" // make a new function using custom separator and decimal char: cons