how to make sure that 1 and 11 exist at the same time
when there is "1BI 11" in a string.var str = "1,11"
if(str.toString().indexOf("11") != -1 && str.toString().indexOf("1") != -1 ){
return true;
}the problem is that str= "2BI 11" will also meet the above judgment conditions
two regular expressions
if the data format is determined, it is , separated by . Then change it to an array and then judge.
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