新建 mixin/valid.js
export default {
data() {
return {
// invalidValues: new Set(["undefined", "null", "NaN", "", null, undefined])
invalidValues: ["undefined", "null", "NaN", "", null, undefined, NaN]
};
},
methods: {
isValidValue(v) {
// return !this.invalidValues.includes(v) && !Number.isNaN(v);
return !this.invalidValues.includes(v);
},
returnValue(v, r = "-") {
return this.isValidValue(v) ? v : r;
},
makeDifference(max, min, part = 2, r = "-") {
return this.isValidValue(max) && this.isValidValue(min)
? (max - min).toFixed(part)
: r;
}
}
};
使用
import valid from "@/mixin/valid";
export default {
mixins: [valid],
function A(params) {
return this.returnValue(param.value)
}
