vue-component

问题 I have a get request that detects if user is Admin or not. My problem is that I want to display a button using v-if to check if it's true or false. By default the value is set to false . Data Then we got the button : And the .then in beforeCreate : 回答1: You need to use an arrow function to preserve the this context: .then((responses) => { Otherwise the callback function injects its own this 来源： https://stackoverflow.com/questions/65290912/type-error-in-then-function-using-vue-js

问题 I have a get request that detects if user is Admin or not. My problem is that I want to display a button using v-if to check if it's true or false. By default the value is set to false . Data Then we got the button : And the .then in beforeCreate : 回答1: You need to use an arrow function to preserve the this context: .then((responses) => { Otherwise the callback function injects its own this 来源： https://stackoverflow.com/questions/65290912/type-error-in-then-function-using-vue-js

问题 I have a get request that detects if user is Admin or not. My problem is that I want to display a button using v-if to check if it's true or false. By default the value is set to false . Data Then we got the button : And the .then in beforeCreate : 回答1: You need to use an arrow function to preserve the this context: .then((responses) => { Otherwise the callback function injects its own this 来源： https://stackoverflow.com/questions/65290912/type-error-in-then-function-using-vue-js

问题 I have an array of objects which is getter. I am using getter inside action and trying to filter it but whatever I do filtering doesn't work and it returns all mapped item ids. filterItems({ getters, commit }) { let filteredItems = getters.getAllItems .filter(item => item.type !== 'hat' || item.type !== 'glases') .map(item => item.id) console.log(filterItems) commit('setFilteredItems', filteredItems) }, What is wrong? 回答1: I think the problem is coming from here: item.type !== 'hat' || item

问题 It's said that composition api solves naming conflicts which were brought by mixins. This is what I found on the internet about composition API. export default { setup () { const { someVar1, someMethod1 } = useCompFunction1(); const { someVar2, someMethod2 } = useCompFunction2(); return { someVar1, someMethod1, someVar2, someMethod2 } } } I guess, useCompFunction1() and useCompFunction2 are like mixins. In the example, all is good. but if useCompFunction1() and useCompFunction2() use the

问题 It's said that composition api solves naming conflicts which were brought by mixins. This is what I found on the internet about composition API. export default { setup () { const { someVar1, someMethod1 } = useCompFunction1(); const { someVar2, someMethod2 } = useCompFunction2(); return { someVar1, someMethod1, someVar2, someMethod2 } } } I guess, useCompFunction1() and useCompFunction2 are like mixins. In the example, all is good. but if useCompFunction1() and useCompFunction2() use the

问题 Codepen Demo I have a component which has an location object as props . The argument I passed in is locations[index] which is a selected item from a locations array. However, the component cannot react when the index change. As you can see in the demo, the JSON change as you click the button, but the component cannot update. What's the best way to make the component reactive? 回答1: Your location component populates the province and city data properties in the mounted hook only. When the

问题 Codepen Demo I have a component which has an location object as props . The argument I passed in is locations[index] which is a selected item from a locations array. However, the component cannot react when the index change. As you can see in the demo, the JSON change as you click the button, but the component cannot update. What's the best way to make the component reactive? 回答1: Your location component populates the province and city data properties in the mounted hook only. When the

问题 Codepen Demo I have a component which has an location object as props . The argument I passed in is locations[index] which is a selected item from a locations array. However, the component cannot react when the index change. As you can see in the demo, the JSON change as you click the button, but the component cannot update. What's the best way to make the component reactive? 回答1: Your location component populates the province and city data properties in the mounted hook only. When the

问题 Codepen Demo I have a component which has an location object as props . The argument I passed in is locations[index] which is a selected item from a locations array. However, the component cannot react when the index change. As you can see in the demo, the JSON change as you click the button, but the component cannot update. What's the best way to make the component reactive? 回答1: Your location component populates the province and city data properties in the mounted hook only. When the