Underscore.js is a library in javascript that makes operations on arrays, string, objects much easier and handy. _.now() function is used to return the timestamp of the current time. This method can be useful when working with animations in the browser.
Syntax:
_.now();
Parameters: It takes no parameters.
Returns: The return type is number.
Note: It is very necessary to link the underscore CDN before going and using underscore functions in the browser. When linking the underscore.js CDN The "_" is attached to the browser as a global variable.
Few examples are given below for a better understanding of the function.
Example 1:
<!DOCTYPE html>
<html>
<head>
<script src =
"https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js" >
</script>
</head>
<body>
<script>
console.log(`Current timestamp is: ${_.now()}`)
</script>
</body>
</html>
Output:
Example 2:
<!DOCTYPE html>
<html>
<head>
<script src =
"https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js" >
</script>
</head>
<body>
<script>
//creating print function to print timestamp after delay of 10ms
function print(){
setTimeout(()=>{
console.log(`Current timestamp is: ${_.now()}`)
}, 10)
}
//running this function 5 times using _.times() function.
_.times(5, print)
console.log("Type of timestamp is: ", typeof(_.now()))
</script>
</body>
</html>
Output:
