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javascript实现字符串替换星号的方法:1、通过“phone.substr(0,3)+'****'+phone.substr(7);”方法实现替换;2、通过正则表达式实现字符串替换星号。
本文操作环境:windows7系统、javascript1.8.5版、Dell G3电脑。
javascript怎么实现字符串替换星号?
JavaScript - 手机号码中间用星号代替
如手机号码18854112211,中间用’*'代替,显示188****2211
let phone='18854112211'
方法1(字符串的截取):
var showPhone = phone.substr(0,3)+'****'+phone.substr(7);
方法2(正则表达式):
var showPhone = phone.replace(/^(\d{3})\d{4}(\d+)/,"$1****$2")
测试结果: 188****2211
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