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Handlebars.js无法读取未定义的属性“哈希”

[英]Handlebars.js Cannot read property 'hash' of undefined

There's this code: 有以下代码:

<div id="banner-tree" class="hidden"></div>
    <script id="banner-template" type="x-handlebars-template">                  
        {{#each this}}
            {{#if this.text and this.outcomes}}
                <div class="banner-wrap" style="background-image: url({{imageSrc}});">
                    <div class="banner-desc">{{text}}</div>
                    <div class="banner-markets">Odds: {{outcomes.outcomeOdds}}</div>
                </div>
            {{else if this.outcomes}}
                <div class="banner-wrap" style="background-image: url({{imageSrc}});">
                    <div class="banner-markets">Odds: {{outcomes.outcomeOdds}}</div>
                </div>
            {{else if this.text}}
                <div class="banner-wrap" style="background-image: url({{imageSrc}});">
                    <div class="banner-desc">{{text}}</div>
                </div>                      
            {{else}}    
                <div class="banner-wrap" style="background-image: url({{imageSrc}});"></div>
            {{/if}}
        {{/each}}           
    </script>

And this script: 这个脚本:

var templateBanner = $("#banner-template").html(); 
                var templateCompiled = Handlebars.compile(templateBanner);
                var compiledHtml = templateCompiled(response.data);
                var bannerTree = $('#banner-tree');
                bannerTree.html(compiledHtml);
                bannerTree.removeClass('hidden');

                Handlebars.registerHelper('if', function(conditional, options) {
                    if(conditional) {
                        return options.fn(this);
                    } else {
                        return options.reverse(this);
                    }
                });
                Handlebars.registerHelper('each', function(context, options) {
                    var ret = "";
                    for(var i=0, j=context.length; i<j; i++) {
                        ret = ret + options.fn(context[i]);
                    }
                    return ret;
                });

Yesterday it was all right. 昨天没事。 It worked as it should. 它按预期工作。 This morning I started getting Cannot read property 'hash' of undefined . 今天早上,我开始Cannot read property 'hash' of undefined After some inquiring, I figured the fault is at {{#each this}} element. 经过一番询问,我发现问题出在{{#each this}}元素上。 Or I guess so at least. 或者我猜至少如此。 When I change context, say, for data it doesn't produce any results (loaded JSON arrays are NOT pushed into div), but it doesn't give me error either. 例如,当我更改上下文时,对于data它不会产生任何结果(加载的JSON数组不会被推入div),但也不会给我错误。 When I remove whole that ifology and leave just 当我删除整个假设时,只留下

{{#each this}}
    <div class="banner-wrap" style="background-image: url({{imageSrc}});"></div>
{{/each}}

Then it works partially. 然后它会部分工作。 But unfortunately, I need those ifs. 但不幸的是,我需要那些前提条件。 So, it's eather if or each. 因此,无论是否都可以。 I'm trying to solve this for last two hours and I came up empty :/ 我试图解决最后两个小时的问题,但我还是空了:/

{{#if this.text and this.outcomes}} was at fault. {{#if this.text and this.outcomes}} After redefining the whole statements just to include partial if s and else it started to work just fine. 在重新定义整个语句后,只包含了部分ifelse它开始正常工作。

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