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View Code? Open in Web Editor NEW微信小程序使用 watch 和 computed
微信小程序使用 watch 和 computed
watch与computed直接可以作为Page的相应属性。
如果computed依赖两个对象数组计算。修改对象的属性不会重新计算
ios端运行小程序报错
jsEnginScriptError Maximum call stack size exceeded
定义属性的get方法中
if (data.$target) {
subs.push(data.$target)
data['$' + key] = subs
}
报的错
onLoad: function (options) {
const that = this
computed(this, {
isLoginButtonDisabled: function () {
console.log(1);
return !that.data.password || !that.data.username;
}
})
},
1、在 username 改变时不会触发;
2、如果交换位置!that.data.username|| !that.data.password,则password修改时候不会触发。
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