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48 lines
1.3 KiB
48 lines
1.3 KiB
/**
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* 获取缓存
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* @param String $key key
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* @param String $def 若想要无缓存时，返回默认值则get('key','默认值')（支持字符串、json、数组、boolean等等）
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* @return value;
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*/
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function get (key, def = '') {
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const timeout = parseInt(wx.getStorageSync(`${key}__separator__`) || 0);
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// 过期失效
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if (timeout) {
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if (Date.now() > timeout) {
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this.remove(key);
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return;
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}
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}
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let value = wx.getStorageSync(key);
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return value ? value : def;
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}
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/**
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* 设置缓存
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* @param String $key key
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* @param String $value value（支持字符串、json、数组、boolean等等）
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* @param Number $timeout 过期时间（单位：分钟）不设置时间即为永久保存
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* @return value;
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*/
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function put (key, value, timeout = 0) {
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let _timeout = parseInt(timeout);
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wx.setStorageSync(key, value);
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if (_timeout) {
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wx.setStorageSync(`${key}__separator__`, Date.now() + 1000 * 60 * _timeout);
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} else {
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wx.removeStorageSync(`${key}__separator__`);
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}
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return value;
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}
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function remove (key) {
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wx.removeStorageSync(key);
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wx.removeStorageSync(`${key}__separator__`);
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return undefined;
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}
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module.exports = {
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remove: remove,
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put: put,
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get: get
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}
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