Article directory 1. Computed properties 1.1 Use interpolation syntax and methods to splice names 1.2 Use computed properties to splice names 1.3 Abbreviation of computed properties 1.4 Summary of computed properties 2. Monitoring attributes-watch 2.1 Weather case foreshadowing 2.2 Lead to monitoring attributes (1). Pass in the watch configuration when new Vue (2). Monitor through […]
Tag: monitoring
JavaScriptEvent monitoring, event delegation and callback functions
1. Event monitoring on method: box.onclick = function(){}, but this method will be overwritten. You can unbind the event by directly overwriting it with null. addEventListener is a method specifically used by DOM objects to add event listening. Its first two parameters are [event type] and [event callback], and the third parameter of addEventListener is […]
[Building Prometheus monitoring from scratch] Section 5: Installing Prometheus on k8s and indicator optimization
Article directory Preface Install Prometheus on Kubernetes StatefulSet is configuring Detailed explanation of configmap configuration and indicator collection optimization ideas How to filter indicators (optimize indicator volume) How to get all k8s metrics? start up View metrics Foreword In our Prometheus monitoring architecture, the main role of prometheus on k8s is to monitor k8s resources, […]
Design of greenhouse environmental data monitoring system based on microcontroller
Collect and like, your attention is the motivation for my creation Article directory summary 1. Overall plan design 2.1 Overall architecture design 2. Overall hardware circuit design 3.1 Main controller circuit 3 System Design Summary 4.2 Main program design Schematic diagram program 4. Conclusion 5. Article Table of Contents Summary Compared with developed agricultural countries, […]
Security monitoring project—mjpeg-streamer video image display (real-time video streaming implementation)
Article directory Preface 1. Hardware preparation and hardware equipment inquiry 2. Transplantation of jpeg library 2.1 Source code download 2.2 Transplantation of jpeg library 3. Transplantation of mjpeg-stream 4. Test results Summarize Foreword Continuing from the previous issue, we have implemented many functions, but the real-time upload of video streams has not yet been implemented. […]
Design of intelligent sensing monitoring system based on microcontroller
Collect and like, your attention is the motivation for my creation Article directory summary 1. System analysis 2.1 Design requirements for the entire control system 2.2 Overall design plan 2. System hardware circuit design 3.1 Introduction to hardware circuit 3.2 Control circuit analysis 3.2.1 Reset circuit 3. Software design 6 Introduction to Compiler Software Physical […]
Single-chip microcomputer design: Design of intelligent sensing monitoring system based on single-chip microcomputer
Summary Because people’s requirements for safety precautions in life are gradually increasing, science and technology are also developing rapidly, and the speed of electronic technology updates in society is also accelerating. Therefore, an intelligent sensing monitoring system based on a single-chip microcomputer is designed. It is necessary to design the sensor and microcontroller smoke alarm […]
Prometheus+Node_exporter+Grafana implements monitoring host
Prometheus + Node_exporter + Grafana implement monitoring host If there is no installation-related configuration, you must first install and configure it. The environment is based on Linux. The relevant environment configuration of the virtual machine is given at the end of the article. Now we will explain the installation and use of Prometheus + Node_exporter […]
Security monitoring project—Web page controls the fan of Zigbee terminal node through A9
Article directory Preface 1. Zigbee CGI interface 2. Request thread and hardware control 3. Phenomenon display Summarize Foreword Continuing from the previous issue, we can take a look at the previous functional design part. There is another control on the web page, which is to control the fan node on Zigbee through the web page. […]
Tools for monitoring browser page display performance
In B/S architecture, users use browsers to access back-end services. When developing products, we need to pay attention to user experience, which not only includes interaction friendliness, but also performance indicators. Common performance indicators for back-end development may include: response time, throughput, etc. In addition, performance analysis of browser page navigation, HTML data parsing, and […]