Lodash _.bindKey() Method Last Updated : 03 Sep, 2024 Comments Improve Suggest changes Like Article Like Report Lodash _.bindKey() method of Function in lodash is used to create a function that calls the method at the object[key] along with the partials added to the arguments it accepts.Note:This method is different from the _.bind() method as it permits bound functions to mention methods that may be reinterpreted or do not still exist.The _.bindKey.placeholder value that is by default ( _ ) in monolithic builds which is utilized as a placeholder for partially used arguments.Syntax:_.bindKey(object, key, partials);Parameters: object: It is the object that is used to call the method.key: It is the key to be used in the method.partials: It is the arguments that are to be partially applied. It is an optional parameter.Return Value: This method returns the new bound function.Example 1: In this example, we are passing partials to the function and printing the result into the console by the use of the lodash _.bindKey() method. JavaScript // Requiring lodash library const _ = require('lodash'); // Defining object parameter of this method let obj = { 'author': 'Nidhi', 'welcome': function (greet, mark) { return greet + ' ' + this.author + mark; } }; // Using the _.bindKey() method // with its parameters let bound_fun = _.bindKey(obj, 'welcome', 'Hello'); // Calling bound_fun by passing its value console.log(bound_fun('!!')); Output:Hello Nidhi!!Example 2: In this example, we are passing partials to the function and using a bound with the placeholder then printing the result into the console by the use of the lodash _.bindKey() method. JavaScript // Requiring lodash library const _ = require('lodash'); // Defining object parameter of this method let obj = { 'portal': function (portal, mark) { return 'Welcome to ' + portal + mark; } }; // Using the _.bindKey() method with its // parameters and a placeholder let bound_fun = _.bindKey(obj, 'portal', _, '!'); // Calling bound_fun by passing its value console.log(bound_fun('GeeksforGeeks')); Output:Welcome to GeeksforGeeks! Comment More infoAdvertise with us Next Article Lodash _.curry() Method N nidhi1352singh Follow Improve Article Tags : JavaScript Web Technologies JavaScript-Lodash Similar Reads Lodash _.after() Method Lodash _.after() method is opposite of Lodash _.before() method. 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