第一次发现JavaScript中replace() 方法如果直接用str.replace("-","!") 只会替换第一个匹配的字符. 2
而str.replace(/-/g,"!")则可以替换掉全部匹配的字符（g为全局标志）。3
4
5
replace() 6
The replace() method returns the string that results when you replace text matching its first argument 7
(a regular expression) with the text of the second argument (a string). 8
If the g (global) flag is not set in the regular expression declaration, this method replaces only the first 9
occurrence of the pattern. For example, 10
11
var s = "Hello. Regexps are fun.";s = s.replace( 展开更多 （50%）
分享
