element - 广播和派遣函数
作者:互联网
function broadcast(componentName, eventName, params) {
this.$children.forEach(child => {
var name = child.$options.componentName;
if (name === componentName) {
child.$emit.apply(child, [eventName].concat(params));
} else {
broadcast.apply(child, [componentName, eventName].concat([params]));
}
});
}
export default {
methods: {
dispatch(componentName, eventName, params) {
var parent = this.$parent || this.$root;
var name = parent.$options.componentName;
while (parent && (!name || name !== componentName)) {
parent = parent.$parent;
if (parent) {
name = parent.$options.componentName;
}
}
if (parent) {
parent.$emit.apply(parent, [eventName].concat(params));
}
},
broadcast(componentName, eventName, params) {
broadcast.call(this, componentName, eventName, params);
}
}
};
标签:name,parent,componentName,element,eventName,广播,params,child,派遣 来源: https://www.cnblogs.com/qq3279338858/p/14435800.html