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  • A brief analysis of BootStrap grid system

    A brief analysis of BootStrap grid system

    1. Introduction Bootstrap has built-in a responsive, mobile-first streaming grid system. As the screen device or viewport size increases, the system will automatically be divided into up to 12 columns. It includes easy to use predefined classes, and power
    2025-07-25
  • AngularJS Chinese API Reference Manual

    AngularJS Chinese API Reference Manual

    AngularJS Reference Manual AngularJS Directives The AngularJS directive used in this tutorial: Directive Description ng-app defines the root element of the application. ng-bind
    2025-07-25
  • Detailed explanation of the difference between JS and Ajax Get and Post in use

    Detailed explanation of the difference between JS and Ajax Get and Post in use

    The biggest difference between get and post methods is: 1. The get method passes the value parameter in the url, and the post parameter is placed in send 2. The post method must add xmlHttp.setRequestHeader("Content-Type", "application/x-ww
    2025-07-25
  • Definition of JavaScript array and number operation skills

    Definition of JavaScript array and number operation skills

    1. Introduction to array The element types in the array can be numeric, string, boolean, etc., or even an array. 2. Define array 1. Define array through the constructor of the array: var arr=new Array(); var arr=new Array(size);
    2025-07-25
  • Implementation code for the universal Infinitus drop-down menu

    Implementation code for the universal Infinitus drop-down menu

    The drop-down menu is often encountered in my development, but no project needs to be re-written. Although it is simple but very troublesome to modify it, I am still relatively lazy. Today I have time to organize the menus in my previous project developme
    2025-07-25
  • AngularJS ng-mousedown directive

    AngularJS ng-mousedown directive

    AngularJS ng-mousedown directive AngularJS instance executes expressions when the mouse is pressed:<!DOCTYPE html><html><head><meta charset="utf-8">
    2025-07-25
  • A deep understanding of JavaScript built-in functions

    A deep understanding of JavaScript built-in functions

    JavaScript functions can be divided into five categories: ・ Regular functions ・ Array functions ・ Date functions ・ Mathematical functions ・ String functions 1. Regular functions javascript regular functions include the following 9 functions: (1) Alert fun
    2025-07-25
  • Highcharts Implementation code for dynamic refreshing data of multiple Y-axis

    Highcharts Implementation code for dynamic refreshing data of multiple Y-axis

    rendering: js code: $(function() { $(document).ready(function() { Highcharts.setOptions({ global: { useUTC: false
    2025-07-25
  • Quickly resolve the cross-domain problem of Canvas.toDataURL images

    Quickly resolve the cross-domain problem of Canvas.toDataURL images

    As the title says, when the image address of the page is locally output (Html2Canvas.js), due to cross-domain problems in different sources, the toDataURL access permission problem will occur: [Redirect at origin 'http://sub1.xx.com' has been bloc
    2025-07-25
  • JavaScript array method summary analysis

    JavaScript array method summary analysis

    Since I have been using code on freecodecamp recently and have used many JavaScript array methods, I have compiled a tutorial on JavaScript. The specific content is as follows: 1. Ordinary method 1. Join() Join() to connect array elements together and ret
    2025-07-25
  • JavaScript must know (six) delete in instanceof

    JavaScript must know (six) delete in instanceof

    inin determines whether the string on the left or the attribute that can be converted into a string belongs to the right. var data = { x: , y: };//Defines the direct object alert("x" in data);//true , x is an attribute of data alert( in d
    2025-07-25
  • js method to detect whether form data changes when leaving or refreshing a page

    js method to detect whether form data changes when leaving or refreshing a page

    This article example describes how JS detects whether form data changes when leaving or refreshing a page. Share it for your reference, the details are as follows: function formIsDirty(form) { for (var i = 0; i < form.elements.length; i
    2025-07-25
  • JS code to detect horizontal and vertical screens on mobile terminal

    JS code to detect horizontal and vertical screens on mobile terminal

    Using media to determine the problem encountered in screen width: it is feasible when I rotate the screen on iOS, but it doesn't respond on Android. The horizontal screen still shows my vertical screen style. After checking the information, if the med
    2025-07-25
  • Bootstrap must learn every day

    Bootstrap must learn every day

    This article mainly learns about JavaScript plug-in - folding. 1. Transition Effect Regarding transition effect For simple transition effects, you only need to introduce transition.js and other JS files together. If you are using a compiled (or compressed
    2025-07-25
  • JS recursive traversal object to obtain value value technique

    JS recursive traversal object to obtain value value technique

    Generally speaking, recursion is used to determine whether the object is the same as the parent type. Through this article, we will demonstrate simple object recursion, and array recursion is similar. var obj = { a:{w:1,y:2,x:3},b:{s:4,j:5,x:6},c:{car:7,c
    2025-07-25
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