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Javascript Articles
Page 94 of 534
How does Implicit coercion differ from Explicit coercion in JavaScript?
In this article, you will understand how implicit coercion differs from Explicit coercion in JavaScript. An implicit coercion is an automatic conversion of values from one datatype to another. It is also known as type conversion. An explicit coercion is the conversion of data type depending on the user's necessity. Example 1 In this example, let us learn about implicit coercion. let inputValue = "5" console.log("The input variable is defined as: ") console.log(inputValue, typeof inputValue); let resultValue = Number(inputValue); console.log("The input variable is defined as: ") console.log(resultValue, typeof resultValue); Explanation Step 1 −Define a variable: inputValue and assign ...
Read MoreHow does internationalization work in JavaScript?
In this article, you will understand how internationalization works in JavaScript. Internationalization is the process of preparing software so that it can support local languages and cultural settings. It can include changing the date and time format, changing the metric system format, language format, etc. Example 1 In this example, let’s understand the changing of date and time formats. var inputDate = new Date(1990, 2, 25); console.log("The date is defined as: ") console.log(inputDate) console.log("The date in United Kingdom format is: ") console.log(new Intl.DateTimeFormat('en-GB').format(inputDate)); console.log("The date in American format is: ") console.log(new Intl.DateTimeFormat('en-US').format(inputDate)); Explanation Step 1 − Define ...
Read MoreHow does Promise.all() method differs from Promise.allSettled() method in JavaScript?
In this article, you will understand how does Promise.all() method differs from the Promise.allSettled() method in JavaScript. The Promise.all() method takes in one or multiple promises as input and returns a single Promise. This returned promise fulfills when all of the input's promises are fulfilled. It rejects a promise when any of the input's promises is rejected, with this first rejection reason. The Promise.allSettled() method takes in one or multiple promises as input and returns a single Promise. This returned promise fulfills when all of the input's promises settle (including when an empty iterable is passed), with an array of ...
Read MoreHow does inline JavaScript work with HTML?
In this article, you will understand how inline JavaScript works with HTML. Inline JavaScript represents a code block written in between the tags in a html file. The advantage of using inline JavaScript in HTML files is to reduce the round trip of the web browser to the server. Example 1 Let us understand the how to add a basic statement a html file using inline JavaScript − This is a simple HTML file document.write("Hi, This is an inline Javascript code written ...
Read MoreHow to remove falsy values from an array in JavaScript?
In this article, you will understand how to remove false values from an array in JavaScript. An array in JavaScript is a special variable that can hold more than one item. An array can be initialized using the keyword ‘const’ .Falsy values are nothing but boolean false values. Example 1 The first way of achieving it is by iterating the array using a for-each loop and pushing the non-false values to another array and returning the array. const inputArray = [true, false, false, true, null, 505, 101]; console.log("The input array is defined as: ") console.log(inputArray) function removeFalsey(inputArray) { ...
Read MoreHow to call the key of an object but return it as a method, not a string in JavaScript?
We can use the "Object.keys()" method to retrieve the keys of an object. However, instead of returning the keys as a string, we can wrap the call to "Object.keys()" in a function. This way, when we call the function, it will return the keys as a method, rather than a string. Approach 1 You can use the Object.keys() method to get an array of the keys of an object, then use array notation or the [] operator to access the key as a property of the object. Here is an example − let obj = { key1: "value1", key2: ...
Read MoreHow to call a function repeatedly every 5 seconds in JavaScript?
We will use the setInterval() function to repeatedly call a function every 5 seconds. This function takes two arguments, the first being the function to call and the second being the interval time in milliseconds. JavaScript setInterval setInterval() is a JavaScript function that allows you to execute a function repeatedly at a specified interval (in milliseconds). It returns a unique ID that can be used to clear the interval with the clearInterval() method. It can be useful for tasks such as periodically updating a page or creating animations. It takes two arguments, the function to be executed, and the ...
Read MoreHow to calculate the XOR of array elements using JavaScript?
We will use a for loop to iterate through the array. We will initialize a variable called "result" with the value of the first element in the array. For each subsequent element in the array, we will use the XOR operator to update the value of "result" with that element. This process will continue until all elements in the array have been processed, resulting in the final XOR value of all elements in the array. Let us first understand what XOR is. We will also see how XOR operation on an array works. Array XOR The XOR (exclusive ...
Read MoreHow to calculate the date three months prior using JavaScript?
To calculate the date three months prior using JavaScript, we will first need to create a new date object, which will represent the current date. We will then use the setMonth() method to subtract 3 from the current month. Finally, we will convert this new date object back to a string using the toString method to display the date three months prior. Basically, we will be writing a dynamic JavaScript function that can take in a number as its input and return the date prior to that number of months from today’s date. For example − calculatePriorDate(4); This ...
Read MoreHow to calculate and print bonus and gross using basic salary by JavaScript?
We will first determine the bonus percentage by multiplying the basic salary by a certain percentage. Next, we will calculate the bonus amount by multiplying the bonus percentage with the basic salary. Finally, we will add the bonus amount to the basic salary to determine the gross salary and print all three values. Here is an example of how to calculate and print the bonus and gross salary using the basic salary in JavaScript − // Declare basic salary variable var basicSalary = 5000; // Calculate bonus (10% of basic salary) var bonus = basicSalary * 0.1; // ...
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