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Editor to share with you how to achieve the value of vue parent-son components, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to understand it!

Parent and child components pass values

The parent-child component passes the value {{total}} / / the parent component passes the value to the child component using props, plus the: sign is the js expression, in the example, it is a number, and without the: sign represents the string var counter = {/ / locally registered props: ['count'], data:function () {/ / defines data in the child component Data cannot be an object, it must be a function. Return {number:this.count}}, template:' {{number}}', methods: {handleClick2:function () {this.number + +; / / this.count++; parent components can pass values to child components, but child components cannot modify parent component properties. This.$emit ("numberchange", this.number) / / the child component passes events to the parent component. The value} var validateContent = {props: {/ / content: [Number,String] / / component parameter check You can select content: {/ / component parameters to verify type:String, required:true, default: "default value", validator:function (value) {return value.length > 5}, template:' {{content}}',} var vm = new Vue ({el:'#root', data: {total:0}) Methods: {handleChange:function (number) {console.log (number) / / this.total + = 1 }, components: {counter, / / partial registration to register the component validateContent}}) these are all the contents of the article "how to pass values between parent and child components in vue". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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