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JS regular expression finds the number of times a character (string) appears (one line of code)

2022-07-29 03:25:00 【Yang Jianye】

JS Regular expression finds a character （ strand ） Number of occurrences （ One line of code ）

  • var str = “abc_def_ghi_ab_cd”;
  • str.match(/ Characters to find （ strand ）/igm).length;
  • Such as str.match(/ab/igm).length The value is 2, Find string ab Number of occurrences ：2 Time
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