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Implementation method of js barrage function

PHP Chinese website brings you the method of realizing the barrage function in js: 1. Create an html file; 2. Add the html code structure; 3. Use div, input, and button tags in the body tag to assign the page design effect display box, Input box and barrage submission button; 4. Add script tags and write js code to achieve the barrage effect; 5. View the design effect through the browser. I hope to be helpful.

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time：2024-03-04 17:13:34

How does the new operator work in js? How does the new operator in js work? Specific code examples are needed. The new operator in js is a keyword used to create objects. Its function is to create a new instance object based on the specified constructor and return a reference to the object. When using the new operator, the following steps are actually performed: create a new empty object; point the prototype of the empty object to the prototype object of the constructor; assign the scope of the constructor to the new object (so this points to new object); execute the code in the constructor and give the new object

new working principle Operator Scope new operator

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