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ViewsFunction empty object check
I need help this task You have to implement function that will Check that object is empty. Object considered to be empty when it has no properties or all its properties are false (I.e. 0, “”, false …)
check object for presence: {},0, “”, symbol(“key”), null, 5,[].
2 answers
Answer question0
You can use something like this. This will just loop through the object and check if any value exist and if it does it will just return false else it will return true.
function isEmpty(obj) {
for (let key in obj) {
if(!!obj[key]) return false;
}
return true;
}
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You can use 'Object.Values(obj)' which returns an array of all the values from the key value pairs of the object passed as parameter.
'!Object.Values(obj)' will return false if there are no values, which means this is not an object.
'anArray.every(element => { //return a boolean } )' will loop through all the items of the array and return true only if the the arrow function returns true for all 'every' element on the array
function isEmpty (obj){
return !Object.Values(obj) ||
Object.Values(obj).every (v => !v));