Lodash _.uniqueId() method is used to create a unique ID for an element each time. This method will work for the purpose of assigning a unique ID for most use cases, but not with complex projects that require a unique ID even if the project restarts.
Syntax:
_.uniqueId([prefix = ''])
Parameters:
- prefix is the value to prefix the ID with.
Return Value:
This method returns the string’s unique ID.
Example 1: In this example, we are printing the unique id in the console by using the _.uniqueId() method.
Javascript
// Requiring the lodash library const _ = require("lodash");// Use of _.uniqueId() // Method without the prefixlet gfg = _.uniqueId();// Printing the output console.log(gfg); |
Output:
1
Example 2: In this example, we are printing the unique id in the console by using the _.uniqueId() method having ‘gfg’ as a prefix.
Javascript
// Requiring the lodash library const _ = require("lodash");// Use of _.uniqueId() // Method with prefixlet ans = _.uniqueId("gfg_");// Printing the output console.log(ans);let ans1 = _.uniqueId("gfg_");// Printing the output console.log(ans1); |
Output:
gfg_1
gfg_2
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