Lodash _.hasIn() Method
Lodash _.hasIn() method is used to check whether the path is a direct or inherited property of the object or not. It returns true if the path exists, it returns false.
Syntax:
_.hasIn(object, path);
Parameters:
- object: This parameter holds the object to query.
- path: This parameter holds the path to check. The path will be an array or string.
Return Value:
This method returns true if the path exists, or false.
Example 1: In this example, we are checking whether the given path is a direct or inherited property of the object by the use of the lodash _hasIn() method.
Javascript
// Requiring the lodash library const _ = require( "lodash" ); // Given object let object = _.create({ 'a' : _.create({ 'b' : 2 }) }); // Use of _.hasIn method console.log(_.hasIn(object, 'a' )); console.log(_.hasIn(object, [ 'a' ])); console.log(_.hasIn(object, [ 'b' ])); |
Output:
true
true
false
Example 2: In this example, we are checking whether the given path is a direct or inherited property of the object by the use of the lodash _hasIn() method.
Javascript
// Requiring the lodash library const _ = require( "lodash" ); // Given object let object = _.create({ 'a' : _.create({ 'b' : 2 }) }); // Use of _.hasIn method console.log(_.hasIn(object, 'a.b' )); console.log(_.hasIn(object, [ 'a' , 'b' ])); console.log(_.hasIn(object, [ 'a' , 'b' , 'c' ])); |
Output:
true
true
false
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