In vue, axios loads data asynchronously, but some files need to use the data obtained asynchronously. Before the data is obtained, the file has already been executed. At this time, the data is empty and an error will be reported. How to solve this probl...
is an example of writing n parameters and n heap execution statements that you don t want to take from other people s articles. I have written three simple examples myself, which contain my understanding and questions about callback functions. I read...
existing projects create merchandise modules for selected specifications, sealed separately in a subcomponent. When you do the editing function, you need to pass values to the subcomponents, and you need to reflect the values you have selected. First of...
the project obtains the configuration items through the configuration file before it wants to go to devops,. Now it pulls the configuration items from the configuration center, modifies the previous configuration file Synchronize load to obtain the con...
originally wrote JAVA, but the sophomore recently encountered asynchronous programming in the new nodejs, is a bit difficult to understand. now I am writing a crawler originally done in JAVA, get a url list, submit the request crawl web page with for...
The question is written on the title, is there any way to be spaced by BAN, when it is applied too fast in crawlers? Or is it that there is no interval in this kind of concurrency? ...
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for the node+mongoose project I wrote, the code that defines the mongoose module is stored in the models folder. If I write a module.exports= export, node will report an error. here is a model const mongoose = require( mongoose ) const Schema = mon...
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recently, the log10 and powf functions in math.h are needed in the project, but CPU is a bit unbearable. Our data are all floating-point, so it is troublesome to find exponents and logarithms. If you want to optimize, the optimization effect is better th...
A vue project operated by the company itself uses video-player to play videos in m3u8 format. However, some users report that in the case of WiFi connection, sometimes they will jump to the local live TV broadcast, as shown in the following figure: ...