JavaScript

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate email string using regex, use /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/ it will handle date. This regex will validate string date should passing it to the Date constructor returns a valid Date object. Let’s see short example of javascript regex for validate email. const regex = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/; console.log(regex.test("hello@infinitbility.github.io")) Today, I’m going to show you How do I check value contain valid date in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate file extension string using regex, use /\.[0-9a-z]+$/i it will handle all type file extension. Let’s see short example of javascript regex for validate file extension. const regex = /\.[0-9a-z]+$/i; console.log(regex.test("infinitbility.exe")) Today, I’m going to show you How do I check value contain valid date in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method. Let’s start today’s tutorial how do you check valid file extension format in javascript using regex?...

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate date string using regex, use /^\d{2}[\/|\-]\d{2}[\/|\-]\d{4}$/ it will handle date. This regex will validate string date should passing it to the Date constructor returns a valid Date object. Let’s see short example of javascript regex for validate date. const regex = /^\d{2}[\/|\-]\d{2}[\/|\-]\d{4}$/; console.log(regex.test("09/30/2022")) Today, I’m going to show you How do I check value contain valid date in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate domain name string using regex, use /[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9](?:\.[a-zA-Z]{2,})+/ it will handle domain name. Let’s see short example of javascript regex for domain name. const regex = /[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9](?:\.[a-zA-Z]{2,})+/; console.log(regex.test("infinitbility.github.io")) Today, I’m going to show you How do I check value contain domain name in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method. Let’s start today’s tutorial how do you check domain name in javascript using regex?...

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate hex color string using regex, use /^#(?:[0-9a-f]{3}){1,2}$/i it will handle hex color. Let’s see short example of javascript regex for hex color. const regex = /^#(?:[0-9a-f]{3}){1,2}$/i; console.log(regex.test("#123abc")) Today, I’m going to show you How do I check value contain hex color in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method. Let’s start today’s tutorial how do you check hex color in javascript using regex?...

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate canadian postal code string using regex, use /^[ABCEGHJ-NPRSTVXY]\d[ABCEGHJ-NPRSTV-Z][ -]?\d[ABCEGHJ-NPRSTV-Z]\d$/i it will handle canadian postal code. Let’s see short example of javascript regex for canadian postal code. const regex = /^[ABCEGHJ-NPRSTVXY]\d[ABCEGHJ-NPRSTV-Z][ -]?\d[ABCEGHJ-NPRSTV-Z]\d$/i; console.log(regex.test("h2t-1b8")) Today, I’m going to show you How do I check value contain canadian postal code in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate comma separated numbers string using regex, use /^[0-9]+(,[0-9]+)*$/ it will handle comma separated numbers. Let’s see short example of javascript regex for comma separated numbers. const regex = /^[0-9]+(,[0-9]+)*$/; console.log(regex.test("1,284,473")) Today, I’m going to show you How do I check value contain comma separated numbers in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method. Let’s start today’s tutorial how do you check comma separated numbers in javascript using regex?...

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate absolute url string using regex, use /^(?:[a-z+]+:)?/// it will handle absolute url. Let’s see short example of javascript regex for absolute url. const regex = new RegExp('^(?:[a-z+]+:)?//'); console.log(regex.test("hello")) Today, I’m going to show you How do I check value contain absolute url in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method. Let’s start today’s tutorial how do you check absolute url in javascript using regex?...

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate alphabets only string using regex, use /^[a-zA-Z]+$/ it will handle all alphabates only. Let’s see short example of javascript regex for alphabets only. const regex = /^[a-zA-Z]+$/; console.log(regex.test("hello")) Today, I’m going to show you How do I check value contain only alphabets in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method. Let’s start today’s tutorial how do you allow only alphabets in javascript using regex?...

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate alphabets and space string using regex, use /^[a-zA-Z]+(\s[a-zA-Z]+)?$/ it will handle all alphabates and space. Let’s see short example of javascript regex for alphabets and space. const regex = /^[a-zA-Z]+(\s[a-zA-Z]+)?$/; console.log(regex.test("hello ")) Today, I’m going to show you How do I check value contain only alphabets and space character in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To validate alphanumeric string using regex, use /^[a-z0-9]+$/i it will handle all alphabates and numbers. Let’s see short example of javascript regex for alphanumeric. const regex = /^[a-z0-9]+$/i; console.log(regex.test("hello8943")) Today, I’m going to show you How do I check value contain only alphanumeric character in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method. Let’s start today’s tutorial how do you allow only alphanumeric character in javascript using regex?...

Hi Friends 👋, Welcome To Infinitbility! ❤️ To allow only alphanumeric and hyphen, use this regex /^[a-z\d\-\s]+$/i it will return true if value contain only alphanumeric and hyphen. Let’s see short example of javascript regex allow alphanumeric and hyphen. const regex = /^[a-z\d\-\s]+$/i; console.log(regex.test("hello-8943")) Today, I’m going to show you How do I check value contain only alphanumeric and hyphen in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To allow special characters, use this regex /^[a-zA-Z0-9!@#\$%\^\&*\)\(+=._-]+$/g it will return true even if value contain special characters. Let’s see short example to use regex in javascript const regex = /^[0-9]*\.?[0-9]*$/; console.log(regex.test(90.03)) Today, I’m going to show you How do I check value contain special characters in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method. Let’s start today’s tutorial how do you allow special characters in javascript using regex?...

Hi Friends 👋, Welcome To Infinitbility! ❤️ To accept only numbers, use this regex ^[0-9]*$ it will return true if value contain only numbers. Let’s see short example to use regex in javascript const regex = /^[0-9]*$/; console.log(regex.test(90)) Today, I’m going to show you How do I check value contain only numbers and dot in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method. Let’s start today’s tutorial how do you accept only numbers in javascript using regex?...

Hi Friends 👋, Welcome To Infinitbility! ❤️ To allow space between words, use this regex /^\w+( \w+)*$/ it will return true if value contain space between words and false if space have in the left or right side and it’s also return false double space between words. Let’s see short example to use regex in javascript const regex = /^\w+( \w+)*$/; console.log(regex.test("hello 8943")) Today, I’m going to show you How do I check value contain space between words in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To allow only alphanumeric and space, use this regex /^[a-z\d\s]+$/i it will return true if value contain only alphanumeric and spaces. Let’s see short example to use regex in javascript const regex = /^[a-z\d\s]+$/i; console.log(regex.test("hello 8943")) Today, I’m going to show you How do I check value contain only alphanumeric and space in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To allow only numbers and dot, use this regex /^[0-9]*\.?[0-9]*$/ it will return true if value contain only numbers and dots. Let’s see short example of javascript regex allow numbers and decimals only. const regex = /^[0-9]*\.?[0-9]*$/; console.log(regex.test(90.03)) Today, I’m going to show you How do I check value contain only numbers and dot in javascript, as above mentioned, I’m going to use the above-mentioned regex with test() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To get string after last slash in javascript, use split() method with pop() method it will return those string which after then your last slash or which you used to split the string. Let’s see short example to use split() method with pop() method to get string after last slash. string.split("/").pop(); Today, I’m going to show you How do I get string after last slash in javascript, as above mentioned, I’m going to use the above-mentioned split() method with pop() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To get string after dot in javascript, use split() method with pop() method it will return those string which after then your dot or which you used to split the string. Let’s see short example to use split() method with pop() method to get string after dot. string.split(".").pop(); Today, I’m going to show you How do I get string after dot in javascript, as above mentioned, I’m going to use the above-mentioned split() method with pop() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To get string after space in javascript, use split() method with pop() method it will return those string which after then your space or which you used to split the string. Let’s see short example to use split() method with pop() method to get string after space. string.split(" ").pop(); Today, I’m going to show you How do I get string after space in javascript, as above mentioned, I’m going to use the above-mentioned split() method with pop() method....