This content originally appeared on Level Up Coding - Medium and was authored by Maxwell
Javascript can do many amazing things, and there are many things to learn, today we introduce a few short and concise code snippets.
Determine if a number is odd or even
The modulo operator % does the job well.
Determine if a date is a working day
Check if a given date is a weekday.
Get Random boolean(True/False)
Using Math.random() will return a random number between 0 and 1, and then judging whether it is greater than 0.5 will get a value with a 50% probability of True or False.
Get Time From Date Object
Use the .toTimeString() method of the Date object to convert it to a time string, and then intercept the string.
Scroll to Top of Page
window.scrollTo() will scroll to the specified coordinates, if the coordinates are set to (0, 0), it will return to the top of the page.
Reverse the String
There are many ways to reverse a string, here is one of the simplest, using split(), reverse() and join()
Determine if the Current Tab Is Visible
The browser can open many tabs, the following code segment is to determine whether the current tab is an active tab.
Checks if the Specified Element Is Focused
You can use document.activeElement to determine whether an element is in focus.
Check if the Current User Supports Touch Events
Check if the Current User Is an Apple Device
You can use navigator.platform to determine whether the current user is an Apple device.
Get the Mean of All Parameters
The reduce() function can be used to calculate the average of all parameters.
Convert Fahrenheit/Celsius
Don’t be afraid to deal with temperature units anymore, the following two functions are the mutual conversion of two temperature units.
12 Lines of JavaScript To Make You Look Like a Pro was originally published in Level Up Coding on Medium, where people are continuing the conversation by highlighting and responding to this story.
This content originally appeared on Level Up Coding - Medium and was authored by Maxwell
Maxwell | Sciencx (2022-10-18T02:11:07+00:00) 12 Lines of JavaScript To Make You Look Like a Pro. Retrieved from https://www.scien.cx/2022/10/18/12-lines-of-javascript-to-make-you-look-like-a-pro/
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