Lodash _.bindKey() Method
Last Updated :
30 Oct, 2023
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
const _ = require('lodash');
let obj = {
'author': 'Nidhi',
'welcome': function (greet, mark) {
return greet + ' ' + this.author + mark;
}
};
let bound_fun =
_.bindKey(obj, 'welcome', 'Hello');
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
const _ = require('lodash');
let obj = {
'portal': function (portal, mark) {
return 'Welcome to ' + portal + mark;
}
};
let bound_fun =
_.bindKey(obj, 'portal', _, '!');
console.log(bound_fun('GeeksforGeeks'));
|
Output:
Welcome to GeeksforGeeks!
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