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Generate a random number in React using the Math.random() function, for example, Math.floor(Math.random() * (max - min + 1)) + min. The Math.random function returns a number in the range of 0 to less than 1, but can also be used to generate numbers in...

To open a link in a new tab in React, use an a element and set its `target` attribute to _blank, for example. A _blank value indicates that the resource is loaded into the new tab....

To set the target attribute of an element to _blank in React, use an anchor element and set the rel attribute, for example . The _blank value indicates that the resource is loaded in a new tab....

To show an element on hover in React: Set `onMouseOver` and `onMouseOut` properties on the element. Track whether the user is hovering over the element in a state variable. Conditionally render other elements based on the state variable....

We can use the built-in children property to pass components as props in React. All the elements we pass between the opening and closing tags of the component are assigned to the children property....

Changing the color of an SVG in React: Don't set the `fill` and `stroke` properties on the SVG. Import the SVG as a component. Set the fill and stroke props on the component, e.g. MyLogo fill=...

To use an image as a link in React, wrap the image in an a tag, or in a `Link` tag if using React routing. An image will be rendered instead of a link, and clicking on the image will cause the browser to navigate to the specified page....

To check for null in React, use a comparison to check if a value is equal to or not equal to null, such as if (myValue === null) {} or if (myValue !== null) {}. If the condition is met, the if block will run....

Break out of a map() loop in React: Call slice() method on an array to get a portion of the array. Call map() method on the portion of the array. Iterate over a portion of the array....

To handle onKeyPress events in React: Set the `onKeyPress` attribute on the element. Use the key property of the event object to get the key the user pressed. For example, if(event.key === 'Enter') {}....

To check if an array in React is empty, access its length property, such as arr.length. If an array's length is equal to 0, then it is empty. If the array's length is greater than 0, then it is not empty....

Use css file to change the color of links in React. We can define the styles that apply to the anchor element and import the css file in the component to make the styles take effect....

To handle onKeyDown events in React: Set the onKeyDown prop on the element. Use the key property of the event object to get the key the user pressed. For example, if(event.key === 'Enter') {}....

Use the spread syntax ... to combine arrays in React, e.g. const arr3 = [...arr1, ...arr2]. The spread syntax is used to unpack the values ​​of two or more arrays into a new array. The same approach can be used to combine two or more arrays when s...

The forEach() method can be used to iterate over an array outside of JSX code in React. If we need to iterate over an array and render its elements directly in JSX code, use the map() method instead....