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JavaScript - remove undefined and null values from object using lodash
1 answers
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I have an object like:
xxxxxxxxxx1
var object = { a: null, b: undefined, c: 3 }How can I remove all the null and undefined properties?
1 answer
0 points
1. Remove all falsy value
If you want to remove all the falsy values, you can use _.pickBy() method combined with _.identity().
Syntax:
xxxxxxxxxx1
_.pickBy(objectName, _.identity);Practical example:
xxxxxxxxxx1
2
<html>3
<head>4
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.min.js"></script>5
</head>6
<body>7
<script>8
9
var myObject = { a: 1, b: null, c: undefined, d: '', e: false };10
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var result = _.pickBy(myObject, _.identity);12
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console.log(JSON.stringify(result, null, 4));14
15
</script>16
</body>17
</html>2. Remove only null and undefined values
If you want to remove only null and undefined values, you can omit them using omitBy() method.
Syntax:
xxxxxxxxxx1
_(objectName).omitBy(_.isUndefined).omitBy(_.isNull).value();Practical example:
xxxxxxxxxx1
2
<html>3
<head>4
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.min.js"></script>5
</head>6
<body>7
<script>8
9
var myObject = { a: 1, b: null, c: undefined, d: '', e: false };10
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var result = _(myObject).omitBy(_.isUndefined).omitBy(_.isNull).value();12
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console.log(JSON.stringify(result, null, 4));14
15
</script>16
</body>17
</html>
References
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