简体   繁体   中英

How handle 'null' values in a json search

still new to JavaScript, I am searching for numbers in my JSON, but the JSON has a lot of null values. How can I ignore the null values in my search?

$.each(geojson.features, function (i, v) {
    if (v.properties.code.toString().search((/2/i)) != -1) {
        Count++;
    }
});

Thanks for the help in advance.

you can do like this

 if (v.properties.code && v.properties.code.toString().search((/2/i)) != -1) {
            Count++;
        }

first check value is not null and then search the string

The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM