How I can check that my variable match with this pattern A|0, B|0, C| ... Z|0 in jQuery?
The pattern is [one letter]|0
if (myVar.indexOf((/^[A-Z]+$/+'|0') > -1){
// true;
}
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1Note that jQuery is a framework primarily intended for amending the DOM. As you're working with regular expressions here you just need plain JS. I've retagged the question for you.Rory McCrossan– Rory McCrossan2020-03-03 08:55:30 +00:00Commented Mar 3, 2020 at 8:55
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2 Answers
Given that input your regex should look like this: /^[A-Z]\|0$/. [A-Z] matches the first uppercase character, then the pipe is escaped using \| before looking for the final 0 at the end of the input string. From there you can use test() to check whether the input meets that expression.
['A|0', 'A0', 'B|0', '0|C', 'd|0'].forEach(item => {
var result = /^[A-Z]\|0$/.test(item);
console.log(item, result);
})Comments
This following regex can match any integer after |
['A|0', 'A0', 'B|0', '0|C', 'd|0'].forEach(str => {
var result =/^[A-Za-z]\|(\d+)$/.test(str);
console.log(str, result);
})