Programmer Think

drawio.io secondary development tutorial Secondary development basic data Import ide Add local and oss storage Pure front-end function Introduction to various modification positions Modify code Prepare environment git clone https://github.com/jgraph/drawio.git cd drawid-dev\src\main\webapp python -m http.server 8081 The project u ...

Vue bidirectional binding 5, Bidirectional binding 1. What is bidirectional data binding? Vue.js is an MV VM framework, that is, two-way data binding, that is, when the data changes, the view changes, and when the view changes, the data changes synchronously. This is the essence of vue.js.    it is worth noting that what we cal ...

vue data initialization The logic of vue's underlying response is controlled by the Object.defineProperty() function. To begin with, the point of knowledge of this method is: 1. Object.defineProperty() 1.1 Object Definition and Assignment The commonly used definition and assignment method obj.prop =value or obj['prop']=value let obj = {} o ...

1, Calculated attribute - calculated 1. Definition: the attribute to be used does not exist and must be calculated from the existing attribute. Computed: {}, define the calculated attribute in the computed object. 2. Call: use {{method name}} in the page to display the result of the calculation. 3. Principle: the bottom layer uses getter s ...

Elastic box model 1. Telescopic container display Flex is the abbreviation of Flexible Box, meaning "flexible layout", which is used to provide maximum flexibility for box model. Any container can be specified as a flex layout. Elements with Flex layout are called Flex containers, or "containers" for short. All its child ...

1. Background requirements: We have three kinds of coins with different denominations, 11 yuan, 5 yuan and 1 yuan (there must be). We have to pay 15 yuan (integer). How many coins do we need at least? At least 3 coins (3 5 yuan coins). 2. Realization of dynamic programming This problem should be fully suitable for dynamic programming ...

There are two types of data in js, basic data type and reference data type. Basic data types NumberStringBooleanUndefinedNullSymbol (new to ES6)Reference data type ObjectArrayFunctionRegexp How to determine the data type: 1. The typeof is fine with the basic data type judgment, but when it comes to referenced data types (e.g. Array), it ...

CGB2105-Day16 Shining sun 2021-08-10 11:53:08 3007 Category column: 2105 2105 The column contains this content ...

JavaScript 1. General Ant Design History of JavaScript JavaScript is the most popular scripting language The language styles of Java and JavaScript are very different, just to rub the heat A qualified back-end person must be proficient in JavaScript 2. Quick start 2.1 importing JavaScript Internal labelExternal introduction <! ...

JavaScript functions Functions in JavaScript: 1) Encapsulate functions 2) Can be called directly 3) The reuse rate of code is improved 1. Function declaration Function declaration function Function name(parameter list ){ //Function body } Function expression var Function name = function(parameter list ){ //Function body } Function d ...