JavaScript String常用方法和属性
一、string中的常用属性
1. length
说明:
SRE实战 互联网时代守护先锋,助力企业售后服务体系运筹帷幄!一键直达领取阿里云限量特价优惠。字符串的长度属性,一直保持跟踪着该字符串中包含的字符数。
二、string中的常用方法
1. toLowerCase() 和 toUpperCase()
说明:
toLowerCase(): returns a copy of the string with its letters converted to lowercase. Numbers, symbols, and other characters are not affected.
toUpperCase(): returns a copy of the string with its letters converted to capitals. Numbers, symbols, and other characters are not affected.
2. trim()
说明:
returns a copy of the string with beginning and ending whitespace characters removed.

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