once source npm
_.once(func)
Creates a function that is restricted to invoking func once. Repeat calls
to the function return the value of the first call. The func is invoked
with the this binding and arguments of the created function.
Arguments
- func (Function)
The function to restrict.
Returns (Function)
Returns the new restricted function.
Example
var initialize = _.once(createApplication);
initialize();
initialize();
// `initialize` invokes `createApplication` once