Syntax Of Lodash before method
_.before(n, func)
Lodash before method creates a function that invokes func, with this binding and arguments of the created function, while it’s called less than n times. Subsequent calls to the created function return the result of the last func invocation.
Arguments
- n (number) − The number of calls at which func is no longer invoked.
- func (Function) − The function to restrict.
Output
- (Function) − Returns the new restricted function.
Example
var _ = require('lodash');
var raiseAlarm = _.before(3, function(){ console.log('Alarm raised.')});
//Alarm raised will be called two times
raiseAlarm();
raiseAlarm();
raiseAlarm();
raiseAlarm();
Save the above program in tester.js. Run the following command to execute this program.
Command
\>node tester.js
Output
Alarm raised. Alarm raised.
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