Underscore.js _.partial() Function
Last Updated :
24 Nov, 2021
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The _.partial() function is used to apply partially a function by filling in any number of its arguments, without changing its dynamic value.
Syntax:
html
Output:
Example 2:
html
Output:
_.partial(function, *arguments)Parameters: This function accept two parameters as mentioned above and described below:
- function: The function that need to be executed.
- arguments: This parameter needs to add some symbols between elements.
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src=
"https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js">
</script>
</head>
<body>
<script type="text/javascript">
var product = function (num1, num2) {
return num1 * num2;
};
prod = _.partial(product, 15);
console.log(prod(18));
</script>
</body>
</html>
<html><head> <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js"> </script></head><body> <script type="text/javascript"> var product = function (num1, num2) { return num1 * num2; }; prod = _.partial(product, 15); console.log(prod(18)); </script></body></html>
Example 2:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src=
"https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js">
</script>
</head>
<body>
<script type="text/javascript">
var sum = function (num1, num2, num3) {
return num1 + num2 + num3;
};
sum = _.partial(sum, 15, 25);
console.log(sum(18));
</script>
</body>
</html>
<html><head> <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js"> </script></head><body> <script type="text/javascript"> var sum = function (num1, num2, num3) { return num1 + num2 + num3; }; sum = _.partial(sum, 15, 25); console.log(sum(18)); </script></body></html>
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