I have an array object that I need to check for emptiness.
const sampleData = {
test:[],
test2:[],
test1:["can"]
}
This is the code I'm using to check for emptiness:
const dataObject = Object.values(sampleData)
console.log(dataObject)
The expected output should be:
const sampleData = {
test1:["can"]
}
You have the option to utilize the Object.entries and Array#reduce methods for this task.
const data = {
test: [],
test2: [],
test1: ["can"]
}
const res = Object.entries(data).reduce((obj, [k, v]) => {
if (v && v.length) obj[k] = v;
return obj;
}, {})
console.log(res)Alternatively, you can achieve the same result by using a for...of loop.
const data = {
test: [],
test2: [],
test1: ["can"]
}
const res = {};
for (let [k, v] of Object.entries(data)) {
if (v && v.length) res[k] = v;
}
console.log(res)const information = {
test: [],
test2: [],
test1: ["can"],
test3: ["hi"]
}
for (let [key, value] of Object.entries(information)) {
if (value.length) {
console.log(`${key}: not empty`)
} else {
console.log(`${key}: empty`)
}
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