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JavaScript Array find() method
The find() method in JavaScript is used to find the first element in an array that satisfies a specified condition. This method returns the value of the first element in the array that passes the test, or undefined if no such element is found. Here is an example of how the find() method works: In […]
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JavaScript Array fill() method
The fill() method in JavaScript is used to fill all the elements of an array with a static value. This method modifies the array in place, meaning that it changes the existing array instead of creating a new one. Here is an example of how the fill() method works: In the code example above, we […]
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JavaScript Array every() method
The every() method in JavaScript is used to check if all elements in an array pass a specified test. This method returns a Boolean value indicating whether all elements in the array pass the test. Here is an example of how the every() method works: In the code example above, we first declare an array […]
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JavaScript Array entries() method
The entries() method in JavaScript is used to return a new Array Iterator object that contains the key/value pairs for each index in the array. This method is typically used in conjunction with the for…of loop to iterate over the elements of an array. Here is an example of how the entries() method works: In […]
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JavaScript Array copyWithin() method
he copyWithin() method in JavaScript is used to copy a sequence of elements within an array to another position in the same array. This method modifies the array in place, meaning that it changes the existing array instead of creating a new one. Here is an example of how the copyWithin() method works: In the […]
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JavScript Array join() method
The join() method in JavaScript is used to join all elements of an array into a string. This method returns a string with all the array elements joined by a specified separator. For example: In the code example above, we first declare an array called array1 that contains three strings: apple, banana, and orange. We […]
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JavaScript Array splice() method
The splice() method can be used to remove items from anywhere in an array. In this example, we use the splice() method to remove the items at indexes 1 and 2 (the “green” and “blue” items) from the array. This leaves us with an array that no longer contains those items. The splice() method returns […]
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JavaScript Array concat() method
The concat() method combines multiple arrays into a single array. This can be useful for combining multiple arrays into a single array, or for creating a new array from existing arrays. Here is another example of using the concat() method to create a new array from existing arrays: In this example, we create an empty […]
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JavaScript Array length property
The length property returns the number of items in an array. This can be useful for getting the size of an array, or for looping over the items in an array. Here is another example of using the length property in a for loop: In this example, the length property is used to determine the […]
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JavaScript array unshift() method
The unshift() method adds one or more items to the beginning of an array and returns the new length of the array. This can be useful for adding items to the beginning of an array, or for combining multiple arrays together.