React

Hi Friends 👋, Welcome To Infinitbility! ❤️ To divide two numbers in react js, use the / operator it will divide it when your value datatype is a number else if your value datatype is string first convert it using parseInt() and then perform the division operation. In the following example, we will take the sample numbers, and strings and perform the divide operation using the / division operator. Dividing Two numbers example let num1 = 3; let num2 = 9; num2 / num1; // 3 Dividing Two string numbers example let num1 = "3"; let num2 = "9"; parseInt(num2) / parseInt(num1); // 3 Today, I’m going to show you How do i divide two numbers in react js, as mentioned above here, I’m going to use the / division operator....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To multiply two numbers in react js, use the * multiplication operator it will multiply it if your value datatype is a number else if your value datatype is string first convert it using parseInt() and then perform multiplication operation. In the following example, we will take the sample numbers, and strings and perform a multiply operation using the * multiplication operator. Multiplying Two numbers example let num1 = 3; let num2 = 3; num2 * num1; // 9 Multiplying Two string numbers example let num1 = "3"; let num2 = "3"; parseInt(num2) * parseInt(num1); // 9 Today, I’m going to show you How do i multiply two numbers in react js, as mentioned above here, I’m going to use the * multiplication operator....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To subtract two numbers in react js, use the - subtraction operator it will subtract it when your value datatype is a number else if your value datatype is string first convert it using parseInt() and then perform the subtraction operation. In the following example, we will take the sample numbers, and strings and perform subtract operations using the - subtraction operator. Subtracting Two numbers example let num1 = 30; let num2 = 34; num2 - num1; // 4 Subtracting Two string numbers example let num1 = "30"; let num2 = "34"; parseInt(num2) - parseInt(num1); // 4 Today, I’m going to show you How do i subtract two numbers in react js, as mentioned above here, I’m going to use the - subtraction operator....

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 first word of string in react js, use split(" ") method with 0 index value it will return first word from string. You have to only pass " " in split() method. Let’s see short example to use split(" ") with with 0 index to get first word from string. string.split(" ")[0]; Today, I’m going to show you How do I get first 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 each character of string in react js, use for...of loop, it will return each character one by one. You have to just use for...of loop on your string string. Let’s see short example to use for loop on string to get each char. for (let char of string) { console.log(char) } Today, I’m going to show you How do I get each character of string in react js, as above mentioned, I’m going to use the for....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To get last two character of string in react js, use substring() method to extracts last two character from string. You have to only pass starting and ending postion of string so for last two character pass text.length - 2 as parameter it will return last two character of string. Let’s see short example to use substring() to get last two character from string....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To get last character of string in react js, use substring() method to extracts last character from string. You have to only pass starting and ending postion of string so for last character pass text.length - 1 as parameter it will return last character of string. Let’s see short example to use substring() to get last character from string. text.substring(text.length - 1); Today, I’m going to show you How do I get last character of string in react js, as above mentioned, I’m going to use the above-mentioned substring() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To get first two character of string in react js, use substring() method to extracts first two character from string. You have to only pass starting and ending postion of string so for first two character pass 0, 2 as parameter it will return first two character of string. Let’s see short example to use substring() to get first two character from string....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To get first character of string in react js, use substring() method to extracts first character from string. You have to only pass starting and ending postion of string so for first character pass 0, 1 as parameter it will return first character of string. Let’s see short example to use substring() to get first character from string. text.substring(0, 1); Today, I’m going to show you How do I get first character of string in react js, as above mentioned, I’m going to use the above-mentioned substring() method....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To remove item from object in react js, use delete keyword it will remove key value pair from object only you have to mantion delete keyword with key. Let’s see how to use delete keyword to remove item from object. let exampleObject = { id: 1, name: "infinitbility", error: "Feild required" }; console.log("exampleObject", exampleObject); // Output // 'exampleObject' { // id: 1, // name: 'infinitbility', // error: 'Feild required' // } delete exampleObject....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To handle apostrophe ( single quote, or double quote ) in react js, use the ( \ ) Escape characters or ( ` ) Template literals it will handle both types quotes single and double. Let’s see how Escape characters and Template literals will solve the issue. let brokenString = 'I'm a broken string'; console.log(brokenString); // Output // unknown: Unexpected token (1:24) brokenString = 'I\'m a broken string'; console....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To check or handle NaN in react js, use the isNaN() method it will return if the value is not a number, if the value is a number it will return false. Let’s understand when the isNaN method returns false or when true. Number.isNaN(NaN); // true Number.isNaN(Number.NaN); // true Number.isNaN(0 / 0); // true // e.g. these would have been true with global isNaN() Number....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To check or handle undefined in react js, use the if statement it will go inside in if statement if the value is not undefined. Basically, If the statement will handle all your false values like 0, false, "", undefined, etc. let value = undefined; if(value){ console.log("value have some data") } else { console.log("value is undefined") } Today, I’m going to show you How do I check or handle undefined in react js, as above mentioned, I’m going to use the if statement to check value is undefined or has some data....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To remove duplicates from array in react js, use the new Set() method with it will create new array without dublicate elements. The Set object lets you store unique values of any type, whether primitive values or object references. To use new set in array you have to follow below syntax. [...new Set(arr)] Today, I’m going to show you How do I remove duplicates from array in react js, as above mentioned, I’m going to use the above-mentioned new Set() method to get only unique elements of array....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To remove duplicates from array in react native, use the new Set() method with it will create new array without dublicate elements. The Set object lets you store unique values of any type, whether primitive values or object references. To use new set in array you have to follow below syntax. [...new Set(arr)] Today, I’m going to show you How do I remove duplicates from array in react native, as above mentioned, I’m going to use the above-mentioned new Set() method to get only unique elements of array....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To empty an array in react js, set [] empty array in a state it will remove the existing array of elements and store a new empty array in a state. setArr([]); Today, I’m going to show you How do I empty an array in react js, as above mentioned, I’m going to use the above-mentioned set [] empty array syntax method to empty an array....

Hi Friends 👋, Welcome To Infinitbility! ❤️ To pass parameters to a promise function in react js, create a parameter function and use promise in a function like the below example. var getNameById = function (id) { return new Promise(function (resolve, reject) { // ... }); }; getNameById(3).then(function (res) { console.log(res); }); // output: "Stuff worked" Today, I’m going to show you How do I pass parameters to a promise function in react js, as above mentioned, I’m going to use the above-mentioned syntax to create and use a promise function with a parameter....

To get the browser name in react js, install the platform package and call platform.name it will return the browser name. Take the example of using the platform package to get the browser name in react js. import platform from 'platform'; platform.name; // 'IE' ( your users browser name ) Today, I’m going to show you How do I get the browser name in react js, as above mentioned here, I’m going to use the platform package to check the browser name....

To get the browser version in react js, install the platform package and call platform.version it will return the browser version. Take the example of using the platform package to get the browser version in react js. import platform from 'platform'; platform.version; // '10.0' Today, I’m going to show you How do I get the browser version in react js, as above mentioned here, I’m going to use the platform package to check the browser version....