w1020/18.uniapp小程序/project1/wxcomponents/vant/common/version.js

let systemInfo;
export function getSystemInfoSync() {
    if (systemInfo == null) {
        systemInfo = wx.getSystemInfoSync();
    }
    return systemInfo;
}
function compareVersion(v1, v2) {
    v1 = v1.split('.');
    v2 = v2.split('.');
    const len = Math.max(v1.length, v2.length);
    while (v1.length < len) {
        v1.push('0');
    }
    while (v2.length < len) {
        v2.push('0');
    }
    for (let i = 0; i < len; i++) {
        const num1 = parseInt(v1[i], 10);
        const num2 = parseInt(v2[i], 10);
        if (num1 > num2) {
            return 1;
        }
        if (num1 < num2) {
            return -1;
        }
    }
    return 0;
}
function gte(version) {
    const system = getSystemInfoSync();
    return compareVersion(system.SDKVersion, version) >= 0;
}
export function canIUseModel() {
    return gte('2.9.3');
}
export function canIUseFormFieldButton() {
    return gte('2.10.3');
}
export function canIUseAnimate() {
    return gte('2.9.0');
}
export function canIUseGroupSetData() {
    return gte('2.4.0');
}
export function canIUseNextTick() {
    try {
        return wx.canIUse('nextTick');
    }
    catch (e) {
        return gte('2.7.1');
    }
}
export function canIUseCanvas2d() {
    return gte('2.9.0');
}
export function canIUseGetUserProfile() {
    return !!wx.getUserProfile;
}