Lodash _.chain() method is used to wrap the value with explicit method chain sequences enabled.
Syntax:
_.chain(value);
Parameter:
- value parameter holds the value to wrap.
Return value:
This method returns the wrapped value.
Example 1: In this example, we have used the _.chain() method in which we have passed the ‘person’ object sorting them by ‘income’ and printing their values in the console.
Javascript
const _ = require('lodash');let person = [ { 'user': 'Tommy', 'income': 2600 }, { 'user': 'Asmita', 'income': 2400 }, { 'user': 'Hiyan', 'income': 2200 }];let Earcning = _ .chain(person) .sortBy('income') .map(function (gfg) { return gfg.user + ' earn is ' + gfg.income; }) .value();console.log(Earcning) |
Output:
[ 'Hiyan earn is 2200', 'Asmita earn is 2400', 'Tommy earn is 2600' ]
Example 2: In this example, we have used the _.chain() method in which we have passed the ‘users’ object sorting them and printing their values in the console.
Javascript
const _ = require('lodash');let users = [ { 'user': 'Tommy', 'age': 23 }, { 'user': 'Asmita', 'age': 24 }, { 'user': 'Hiyan', 'age': 22 }];let youngest = _ .chain(users) .sortBy('age') .map(function (o) { return o.user + ' is ' + o.age; }) .tail() .value();console.log(youngest) |
Output:
[ 'Tommy is 23', 'Asmita is 24' ]
Reference: https://docs-lodash.com/v4/chain/
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