EN
JavaScript - remove empty values from object
3 points
In this article, we would like to show you how to remove empty values from object in JavaScript.
Quick solution:
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function removeEmptyValues(object) {2
for (var key in object) {3
if (object.hasOwnProperty(key)) {4
var value = object[key];5
if (value === null || value === undefined || value === '') {6
delete object[key];7
}8
}9
}10
}11
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// Usage example:14
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var student = {16
name: 'John',17
age: undefined,18
type: null,19
comment: ''20
};21
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console.log(JSON.stringify(student)); // {"name":"John","type":null,"comment":""}23
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removeEmptyValues(student);25
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console.log(JSON.stringify(student)); // {"name":"John"}
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const removeEmptyValues = (object) => {2
const keys = Object.keys(object);3
for (var i = 0; i < keys.length; ++i) {4
const key = keys[i];5
const value = object[key];6
if (value === null || value === undefined || value === '') {7
delete object[key];8
}9
}10
};11
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// Usage example:14
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const student = {16
name: 'John',17
age: undefined,18
type: null,19
comment: ''20
};21
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console.log(JSON.stringify(student)); // {"name":"John","type":null,"comment":""}23
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removeEmptyValues(student);25
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console.log(JSON.stringify(student)); // {"name":"John"}