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! ❤️ Check the global level of the typeScript version To check the current typescript version, open your terminal and run the tsc -v command it will show the current global version of TypeScript. Check TypeScript Version Getting error tsc not found You run the above command tsc -v but it shows the error 'tsc' not recognized as an internal or external command, it means typeScript does not install global level on your PC....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To check data type in react native, use typeof keyword it will return type of data just we have to use this keyword before variable or data. Let’s see short example to use typeof to get data type of value. typeof "Hello"; Today, I’m going to show you How do I check data type in react native, as above mentioned, I’m going to use the above-mentioned typeof method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To check null value in react native, use if statement it will handle all falsy value or you can compare with null it self. Let’s see short example to use if statement to handle null value. let value = null; if(value){ console.log("value have data") } else { console.log("value is null or falsy value") } Today, I’m going to show you How do I check null value in react native, as above mentioned, I’m going to use the above-mentioned use if statement....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To check blank space in typeScript, use if...else statement with trim() method it will handle all falsy value like undefined, null, empty, blank and etc. Let’s see short example to use if...else with trim() method to check blank space in in typeScript. if(value.trim()){ } Today, I’m going to show you How do I check blank space in typeScript, as above mentioned, I’m going to use the above-mentioned if....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To check blank value in typeScript, use if...else statement it will handle all falsy value like undefined, null, empty, blank and etc. Let’s see short example to use if...else with value to check blank value in in typeScript. if(value){ } Today, I’m going to show you How do I check blank value in typeScript, as above mentioned, I’m going to use the above-mentioned if....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To check array is undefined in typeScript, use if...else statement it will handle all falsy value like undefined, null, empty and etc. Let’s see short example to use if...else with array to check array is undefined in typeScript. if(array){ } Today, I’m going to show you How do I check array is undefined in typeScript, as above mentioned, I’m going to use the above-mentioned if....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To check a variable is undefined in typeScript, use if...else statement it will handle all falsy value like undefined, null, empty and etc. Let’s see short example to use if...else with variableName to check a variable is undefined in typeScript. if(variableName){ } Today, I’m going to show you How do I check a variable is undefined in typeScript, as above mentioned, I’m going to use the above-mentioned if....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To check array is null or not in typeScript, use if...else statement it will handle all falsy value like undefined, null, empty and etc. Let’s see short example to use if...else with array to check a array is null in typeScript. if(array && array.length){ } Today, I’m going to show you How do I check array is null or not in typeScript, as above mentioned, I’m going to use the above-mentioned if....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To check array or not in typeScript, use Array.isArray() method it will true or false based on value we have provided, even it’s detect between object or instance of array. Let’s see short example to use if...else with Array.isArray() to check array or not in typeScript. if(Array.isArray(array)){ } Today, I’m going to show you How do I check array or not in typeScript, as above mentioned, I’m going to use the above-mentioned if....

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....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To get string after colon in javascript, use split() method with pop() method it will return those string which after then your colon or which you used to split the string. Let’s see short example to use split() method with pop() method to get string after colon. string.split(":").pop(); Today, I’m going to show you How do I get string after colon 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 specific word in javascript, use split() method with pop() method it will return those string which after then your specific word or which you used to split the string. Let’s see short example to use split() method with pop() method to get string after specific word. string.split("WORD").pop(); Today, I’m going to show you How do I get string after specific word 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 specific character in javascript, use split() method with pop() method it will return those string which after then your specific character or which you used to split the string. Let’s see short example to use split() method with pop() method to get string after specific character. string.split("-").pop(); Today, I’m going to show you How do I get string after specific character 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 last word of string in react js, use split(" ") method with strArr.length - 1 index value it will return last word from string. You have to only pass " " in split() method. Let’s see short example to use split(" ") with with strArr.length - 1 index to get last word from string. let strArr = string.split(" "); strArr[strArr.length - 1]; Today, I’m going to show you How do I get last word of string in react js, as above mentioned, I’m going to use the above-mentioned split() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To get last word of string in react native, use split(" ") method with strArr.length - 1 index value it will return last word from string. You have to only pass " " in split() method. Let’s see short example to use split(" ") with with strArr.length - 1 index to get last word from string. let strArr = string.split(" "); strArr[strArr.length - 1]; Today, I’m going to show you How do I get last word of string in react native, as above mentioned, I’m going to use the above-mentioned split() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To get last word of string in typeScript, use split(" ") method with strArr.length - 1 index value it will return last word from string. You have to only pass " " in split() method. Let’s see short example to use split(" ") with with strArr.length - 1 index to get last word from string. let strArr: Array<string> = string.split(" "); strArr[strArr.length - 1]; Today, I’m going to show you How do I get last word of string in typeScript, as above mentioned, I’m going to use the above-mentioned split() method....