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2021-10-28 SpringBoot+ajax+mysql8 to send mobile phone verification code To realize the above functions, we must first think about what we need. After sorting, we will subdivide the verification code - ① the function of sending verification code ② random 6-digit verification code (several are your favorite). Well, the functional segmentation is ...

preface What I wrote earlier: the main knowledge point of this article is how to realize Ajax through native JavaScript. First, you need to have a little understanding of Json, HTTP network transmission protocol, network request mode, asynchronous programming, etc; 1. Implementation steps Create XMLHttpRequest object;Judge whethe ...

Traditional Ajax, jQquery-Ajax, Vue-resource, axios... Which strong network requests? The vue framework selects axios. Success is not long-term vision, but you are already standing high. Preface-Network Module Selection 1. Traditional Ajax Traditional Ajax is based on XMLHttprequest(XHR) Very well explained, very confusing configurati ...

Cross-domain security restrictions are for the browser side, and there are no cross-domain security restrictions for the server side. The browser's homology policy restricts the interaction of documents or scripts loaded from one source with resources from another source. If the protocol, port and host are the same for both pages, then bo ...

JS What are basic data types in JS? What is a reference data type? difference? Basic data types (stored on the stack): number, string, Boolean, undefined, null Symbol(es6 new) Reference data type (stored in the heap and reference address of data stored in the stack): object, array, function, date, RegExp How many ways to judge the data ty ...

What is JSON? ssdssJSON (JavaScript Object Notation) is a lightweight data exchange format. Easy to read and write. It is also easy to machine parse and generate. JSON adopts a text format completely independent of language, and many languages provide support for JSON (including C, C++, C#, Java, JavaScript, Perl, Python, etc.). This makes JS ...