- Lodash provides flow function which helps in sequencing multiple functions in series.
- Lodash _.flow() method takes the function names as parameters and executes in sequence by binding to current scope.
- In this demo, “We will learn how to use lodash flow functions”.
- The following code shows 4 methods substractByOne(), addByTwo(),multiplyByThree() and divideByFour(). Lodash _.flow() method takes all these 4 functions and executes in series.
<!DOCTYPE html>
<html>
<head>
<script src="https://rawgit.com/lodash/lodash/3.0.1/lodash.min.js"></script>
<meta charset="utf-8">
<title>lodash flow function</title>
</head>
<body>
<script>
var substractByOne = function(number) {
return number - 1;
};
var addByTwo = function(number) {
return number + 2;
};
var multiplyByThree = function(number) {
return number * 3;
};
var divideByFour = function(number) {
return number / 4;
};
var flowFunctionResult = _.flow(substractByOne, addByTwo, multiplyByThree, divideByFour);
var result = flowFunctionResult(6);
console.log("Result: " + result);
</script>
</body>
</html>
- The output of the previous code can be found in the following JSBIN link.
