Question 176387 in Javascript Question posted in
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Does JavaScript check if an object has non-empty strings/arrays as values?

I have an object

const load={trolleyNo:"",trolleyItems:[],cartType:""}

I need to check there are no empty values in this object. The array in the object should not be empty, and neither should the strings. How can I do this?

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3

Answers


  1. 0

    This Function returns true if any value in the object is empty:

    hasEmptyKeys=function(obj){
for (i in obj){
if (obj[i].length==0){return true}}
return false;
}
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  2. 0

    I’d go over the values and use every to check the value’s length:

    const bad = {trolleyNo: "", trolleyItems: [], cartType: ""}
const good = {trolleyNo: "123", trolleyItems: ["cat", "hat"], cartType: "awesome"}

function isPayloadValid(obj) {
  return Object.values(obj).every(v => v.length > 0);
}

console.log(`Is ${JSON.stringify(good)} valid? ${isPayloadValid(good)}`);
console.log(`Is ${JSON.stringify(bad)} valid? ${isPayloadValid(bad)}`);
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  3. 0

    you can write a function that iterates through the keys of your object and checks if they’re null and their length > 0:

    function isValidObject(obj) {
    for (let key in obj) {
        if (obj[key] == null || obj[key].length == 0) {
            return false;
        }
    }
    return true;
}


const load = {
  trolleyNo: null,
  trolleyItems: [],
  cartType: ""
}

console.log(isValidObject(load));
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