JS verifies whether a string ends with a substring, verifies that the string starts with a substring

1. Verify that the string ends with a substring

function Endwith (VALUE,STR) {if (str = = NULL | | str = = "" | | Value.length = = 0 | | Str.length > Value.length) return false;if (value.substring (value.length-str.length) = = str) return True;elsereturn False;return true;};

2. Verify that the string starts with a substring

function Startwith (VALUE,STR) {if (str = = NULL | | str = = "" | | Value.length = = 0 | | Str.length > Value.length) return false;if (value.substr (0, str.length) = = str) return True;elsereturn False;return true;};

　　

JS verifies whether a string ends with a substring, verifies that the string starts with a substring