Javascript2023-04-26
map() in JavaScript
In JavaScript, map() is a built-in method available on arrays that allows you to iterate through each element of an array and create a new array by performing some operation on eac
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Javascript2023-04-26
prototype in JavaScript
In JavaScript, every object has a prototype. A prototype is an object that is used as a template for creating new objects. When an object is created, it inherits properties and met
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=> in JavaScript
In JavaScript, => is called an arrow function or a fat arrow function. It's a shorthand syntax for defining functions that was introduced in ECMAScript 6 (ES6).
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Different ways you can pass arguments to a function in JavaScript
Here are the different ways you can pass arguments to a function in JavaScript, using the area function example:
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sparse array in JavaScript
In JavaScript, a sparse array is an array in which not all elements are initialized with values. This means that there are gaps or missing indexes between the elements that actuall
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for, for..of, and for..in loops in JavaScript
In JavaScript, there are several ways to loop through arrays and objects. Here's an overview of the for, for..of, and for..in loops:
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Javascript2023-04-25
while and do-while in JavaScript
In JavaScript, while and do-while are two types of loops that can be used to repeat a block of code multiple times.
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== vs === in JavaScript
In JavaScript, == and === are two comparison operators that are used to compare two values or variables.
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let, const, and var in JavaScript
In JavaScript, let, const, and var are used for declaring variables, but they have different scopes and behaviors. Here are the main differences:
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Symbol() function in JavaScript
Symbol() is a built-in function in JavaScript that returns a unique symbol value. Symbols are a new primitive data type introduced in ECMAScript 6, which can be used as keys in obj
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Boolean() function in JavaScript
The Boolean() function in JavaScript is used to convert a value into a boolean data type. The function takes a single parameter and returns true or false.
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Template literals vs String concatenation in JavaScript
Template literals and string concatenation are two ways to combine strings in JavaScript.
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