In JavaScript, a map is a collection of key-value pairs that can be used to store and organize data. Maps are similar to objects, but they provide additional functionality like iteration and the ability to use any data type as a key. Maps and objects are similar, but there are some key differences between them:…

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In JavaScript, objects are reference types, while primitive types (like numbers, strings, and booleans) are value types. This means that when we pass an object to a function or assign it to a new variable, the object is not copied, but a reference to the object is passed or assigned. Here is an example that…

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In JavaScript, an object is on of the data types and it is a collection of key-value pairs that represent a collection of data or functionality. Objects can be used to store and organize data, and to define functions and methods that can be used to perform actions on the data. Here is an example…

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In JavaScript, timers and intervals are used to schedule the execution of code at a specific time or at regular intervals. Timers and intervals are commonly used to perform actions like updating a countdown timer, or checking for new data from a server. There are two types of timers and intervals in JavaScript: setTimeout() and…

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In JavaScript, a case switch is a control statement that is used to execute different code depending on the value of a given expression. A case switch uses the switch keyword followed by an expression to evaluate, and a series of case and default statements to specify the code to be executed for each possible…

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A ternary is a conditional operator in JavaScript that allows us to concisely write a conditional statement. Ternaries use the syntax condition ? value1 : value2, where condition is a boolean expression, value1 is the value to be returned if the condition is true, and value2 is the value to be returned if the condition…

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In JavaScript, coercion is the process of converting a value from one type to another. This is often done automatically by the JavaScript interpreter when different types of values are used together in an expression. For example, if we try to add a string and a number together, JavaScript will automatically convert the string to…

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In JavaScript, a function return is a statement that specifies the value that should be returned by a function when it is called. The return statement is used to end the execution of the function and return a value to the caller of the function. Here is an example of using a return statement in…

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In JavaScript, an if statement is a conditional statement that is used to execute a block of code only if a specified condition is true. If the condition is false, the code in the if statement will not be executed. Here is an example of an if statement in JavaScript: In this example, we are…

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