Question

您好我是车把的新手，我正试图通过我在车把上制作的自定义帮手来获取user_id，但我得到了例外，请帮忙。

注册助手

Handlebars.registerHelper('getSessionValue', function (keyValue) {
debugger;
var out = '';
$.ajax({
    url: "/getSession",
    method: 'post',
    async: true,
    dataType: json,
    success :function(result){
        out = result['user_id'];
    }
});
return out;
});

hanldebar模板代码snipet

{{#getSessionValue}}

编译模板时出现

错误

    usr/local/lib/node_modules/handlebars/dist/cjs/handlebars/compiler/helpers.js:15
    throw new Exception(mustache.sexpr.id.original + ' doesn\'t match ' + clos
          ^
Error: getSessionValue doesn't match if - 87:14
    at new Error (<anonymous>)
    at Error.Exception (/usr/local/lib/node_modules/handlebars/dist/cjs/handlebars/exception.js:13:41)
    at Object.prepareBlock (/usr/local/lib/node_modules/handlebars/dist/cjs/handlebars/compiler/helpers.js:15:11)
    at Object.anonymous (/usr/local/lib/node_modules/handlebars/dist/cjs/handlebars/compiler/parser.js:35:21)
    at Object.parse (/usr/local/lib/node_modules/handlebars/dist/cjs/handlebars/compiler/parser.js:190:36)
    at HandlebarsEnvironment.parse (/usr/local/lib/node_modules/handlebars/dist/cjs/handlebars/compiler/base.js:18:17)
    at precompile (/usr/local/lib/node_modules/handlebars/dist/cjs/handlebars/compiler/compiler.js:389:17)
    at HandlebarsEnvironment.hb.precompile (/usr/local/lib/node_modules/handlebars/dist/cjs/handlebars.js:22:12)
    at processTemplate (/usr/local/lib/node_modules/handlebars/lib/precompiler.js:109:80)
    at /usr/local/lib/node_modules/handlebars/lib/precompiler.js:115:5

如何在车把模板中获取会话值？

0 个答案: