自定义车把，如果不等于助手

Question

I've added a custom helper in Handlebars to accomplish an if == "some string" type helper. The helper code is this:

Handlebars.registerHelper('if_eq', function(a, b, opts) {
    if(a == b) // Or === depending on your needs
        return opts.fn(this);
    else
        return opts.inverse(this);
});

The template is this:

<div id="appStoreParametersModal" class="modal-dialog">
    <div class="modal-content appStoreParametersModal">
        <div class="modal-header hypersignModalHeader">
            <h3>{{appName}}</h3>
        </div>
        <div class="modal-body">
            <div id="app-params">
                {{#each appParm}}
                <form>
                    {{#if_eq uiControlType "text"}}
                    <div class="form-group">
                        <label for="{{qsName}}">{{uiName}}</label>
                        <input type="text" class="form-control" id="{{qsName}}" placeholder="{{uiName}}"/>
                    </div>
                    {{else if_eq uiControlType "dropdown"}}
                    <div class="form-group">
                        <label for="{{qsName}}">{{uiName}}</label>
                        <select class="form-control" id="{{qsName}}">
                            {{#each defaultVals}}
                                <option value="{{value}}">{{displayName}}</option>
                            {{/each}}
                        </select>
                    </div>
                    {{/if_eq}}
                </form>
                {{/each}}
            </div>
        </div>
        <div class="modal-footer">
            <button type="button" class="btn btn-warning cancel" data-dismiss="modal" id="cancel">Cancel</button>
            <button type="button" class="btn btn-success" id="appStoreNext">Next</button>
        </div>
    </div>
</div>

I'm getting this error:

Uncaught Error: if_eq doesn't match each

It seems to be a problem with using the {{else}} , because if I only use the if_eq helper without an else , then it works fine. I'm pretty new to Handlebars, so I'm sure I'm missing something stupid.

Answer 1

if_eq doesn't match if您有{{#if_eq stuff "stuff"}}时， if_eq doesn't match if抛出，但是您在{{/if}}而不是{{/if_eq}}错误地结束了它。