javascript-lodashHow can I use Lodash to find a key in a nested JavaScript object?
Lodash is a JavaScript library that provides utility functions for common programming tasks. It can be used to find a key in a nested JavaScript object.
The _.get()
function can be used to traverse the object and return the value of the key. It takes three arguments: the object, the path of the key, and a default value.
Example
const data = {
a: {
b: {
c: 'foo'
}
}
};
const value = _.get(data, 'a.b.c', 'default');
console.log(value);
// Output: 'foo'
In the example above, data
is the object, 'a.b.c'
is the path of the key, and 'default'
is the default value. The _.get()
function will return the value of the key 'c'
, which is 'foo'
.
The _.get()
function is useful for finding a key in a nested JavaScript object.
Parts of code:
const data = { ... }
: this is the object containing the nested keysconst value = _.get(data, 'a.b.c', 'default')
: this is the_.get()
function call, which takes the object, the path of the key, and a default valueconsole.log(value)
: this logs the value of the key to the console
Helpful links
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- How do I use Lodash to sum values in a JavaScript array?
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