check if value exists in array

2018-06-03 22:06:28

This question already has an answer here:

How do I check if an array includes an object in JavaScript? 40 answers

var codes = ["US-AL", "US-AZ", ... ];


if($.inArray(code, codes) > -1){
    //do something    
}

更新：结合@ Deestan的建议，这可以重写为..

function isValidCode(code){
    return ($.inArray(code, codes) > -1);
}

是的

array.indexOf(searchElement[, fromIndex])

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