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43 lines
1004 B
43 lines
1004 B
/*
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全局共享实用方法 shared.js
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*/
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// 设置角标, 必须传入下标值，设置值可传可不传，传参时显示，不传时移除角标
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function setBadge(index = 0, value){
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if(isRight(value)){
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uni.setTabBarBadge({
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index: Number(index),
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text: value > 99 ? '99+' : String(value)
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})
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}else{
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uni.removeTabBarBadge({index: Number(index)});
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}
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}
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// 判断对错/是否显示，万能校验
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function isRight(obj) {
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if (isValueType(obj) === 'string') {
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obj = obj.trim();
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if (obj === 'null' || obj === 'undefined') {
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return false;
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}
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} else if (isValueType(obj) === 'number' && (isValueType(obj) === "number" && !isNaN(obj)) && obj !== 0) {
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return true;
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}
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for (var key in obj) {
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return true;
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}
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return false;
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}
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// 判断一个值所属的类型，返回一个字符串
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function isValueType(value) {
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let str = Object.prototype.toString.call(value);
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return str.match(/\[object (.*?)\]/)[1].toLowerCase();
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}
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module.exports = {
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setBadge,
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isRight,
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isValueType
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}
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