我使用Enquire.js和vue.js来查询浏览器的大小并相应地更新两个数据属性。所以,如果我这样做:
ready: function() {
// Listen for changes in the browser's size
window.addEventListener("resize",
enquire.register("screen and (max-width:400px)", {
match: function() {
this.displayIsLarge = false;
this.displayIsSmall = true;
console.log("the screen is now small");
},
unmatch: function() {
this.displayIsLarge = true;
this.displayIsSmall = false;
console.log("the screen is now large");
}
})
);
}
它将在控制台中输出正确的消息(jsfiddlehere),但是它不会更改
displayIsLarge
和displayIsSmall
的值。我错过了什么? 最佳答案
问题在于this
的范围。完整的工作代码是:
ready: function() {
var self = this;
// Listen for changes in the browser's size
window.addEventListener("resize",
enquire.register("screen and (max-width:400px)", {
match: function() {
self.displayIsSmall = true;
self.displayIsLarge = false;
console.log("the screen is now small");
},
unmatch: function() {
self.displayIsLarge = true;
self.displayIsSmall = false;
console.log("the screen is now large");
}
})
);
}
jsfiddlehere
关于javascript - 结合使用Enquire.js和Vue.js来查询浏览器的大小,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/35632482/