GOOCODE - Find your code/scripts

0 In development work, we sometimes need to provide an API interface for clients or third parties to use, so how to build an API that users can quickly understand is an important task. If we strictly abide by some specifications when designing APIs, communication costs and efficiency will be greatly improved in the subsequent development process. Let’s talk about the design specifications of RESETful API today.

0 There is often a need to export data to Excel during project development, or to download documents. The simplest way to download is to directly request the file address of the server and download the file through the browser http. But in development, due to project requirements, the address of the file you want to download will not be exposed to the user, and authentication is required to allow the download of the file. What should we do at this time?

0 In the AJAX era, network requests such as APIs are made through XMLHttpRequest or encapsulated frameworks. The fetch framework now produced is simply to provide more powerful and efficient network requests. Although there are currently a few browser compatibility issues, when we make some asynchronous requests, we can use fetch to make perfect network requests.

1 javascript uses alphanumeric to sort by default. Therefore, the result of [1,2,5,10] .sort () is [1, 10, 2, 5]. If you want to sort correctly, you should do this: [1,2,5,10] .sort ((a, b) => a-b)

javascript uses alphanumeric to sort by default. So the result of [1,2,5,10] .sort () is [1, 10, 2, 5].

0 When working with the Unicode character set, use the corresponding function instead of the native string function. For example, if a file is encoded as UTF-8 PHP code, if the strlen() function is wrong, use the mb_strlen() function instead.

If you use substr to intercept Chinese characters, garbled characters will appear, because substr is intercepted in bytes. That is, UTF-8 encoded Chinese, using substr interception, will only intercept 1/3 Chinese, of course, garbled. When UTF-8 is encoded, a Chinese character is 3 bytes. Similarly, different languages in other countries will produce multi-byte strings, so we use mb_strlen() to handle them.

0 Never know the user's password, we must encrypt the user's password, and can not save the user's original password directly in the database. Do not limit the user password format. If the format is specified, it may be exploited and cracked by the attacker. Of course, we need to limit the minimum length of the password. It is recommended to use at least 8 bits. The longer the better.

For password security, developers need to:
1, absolutely can not know the user's password, we must encrypt the user's password, can not save the user's original password directly in the database.
2, do not limit the user password format, if the format is specified, it is likely to be exploited and cracked by the attacker, of course, we need to limit the minimum length of the password, it is recommended to at least 8 bits, the longer the better.
3, can not send the user password through the mailbox, when we develop the application to retrieve the password, the user password is not notified to the user by email, but the link to reset the password is sent to the user in the form of mail, let the user Go to reset the password.

0 Recently, it was revealed that Gates once again expressed his "great regret" to the Android system when he participated in the exchange activities organized by venture capital company Village Global.

Gates said that the biggest mistake he made when managing the company was that he did not let Microsoft become the "non-Apple" operating system platform, and let Android rise, which is a $400 billion business.

0 A pager is one of the front-end components commonly used in web development. It can display data to users in batches. We know that frameworks such as Bootstrap provide very nice tabbed components, but your project may not need Bootstrap, you want to customize a beautiful tab for your own project, so please read this article.

This article introduces you to make a beautiful page bar with pure CSS, which can adapt to various mobile screens such as PC and mobile phone. Developers can download the source code and change the css code to customize the style of your own project.

0 CDF Talk (Institute Speech) is an innovative speech event launched by the 20th China Development Forum. The theme of the event is "My Future with China". Twelve representatives from Chinese and foreign outstanding people are invited to share their stories with China. In the first issue, please discuss with Baidu founder, chairman and CEO Li Yanhong "China changes technology."

In China, we must make full use of the advantages of data, the advantages of the scene, the advantages of talent, the advantages of capital and the advantages of infrastructure, and push innovation forward.
These innovations can be used not only by China, but also by the world. Through big data, we can create big opportunities for China to contribute technology that belongs to the world.

1 HTML5's FILE api has a slice method that splits the BLOB object. The front end obtains the corresponding file through the FileList object, segments the large file according to the specified splitting manner, and then passes it to the back end one by one, and then the back end then splicing the files in a sequence.

At present, there are two commonly used methods for resuming breakpoints. One is to upload files through the websocket interface, and the other is through ajax. Both methods have their own advantages. Although websocket sounds more high-end, it uses different ones. The other algorithms outside the protocol are basically similar, and the server needs to open the ws interface. Here, the relatively convenient ajax is used to illustrate the idea of uploading the breakpoint.