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VisualizaçõesHandlebars does not recognize helper
I found this helper online that checks whether a variable is equal to a certain string. I tried to add this helper to my index.hbs file, but I get the following error: Missing helper: "if_eq"
Can someone tell me how I can fix this? I did what they asked me to do in in the official Handlebars docs, so I don't understand. I use NodeJS/Express, but without require('handlebars') or require('express-handlebars'), because that's how express-generator generated it for me.
index.hbs:
<script>
Handlebars.registerHelper('if_eq', function(a, b, opts) {
if(a == b)
return opts.fn(this);
else
return opts.inverse(this);
});
</script>
{{#each tasks}}
{{#if_eq status 'unfinished'}}
[do something]
{{else}}
[do something else]
{{/if_eq}}
{{/each}}
1 Respostas
Responde à pergunta0
express-generator uses: hbs package as you can see in here:
So you need to first register the helper in the server side, like this:
const hbs = require('hbs');
const express = require('express');
const app = express();
app.set('view engine', 'hbs');
hbs.registerHelper('if_eq', function(a, b, opts) {
if(a == b)
return opts.fn(this);
else
return opts.inverse(this);
});
//... rest of your server code
Drop the helper from index.hbs since that's for registering the helper in the client side, and you're rendering handlebars in the server side.
index.hbs
{{#each tasks}}
{{#if_eq status 'unfinished'}}
[do something]
{{else}}
[do something else]
{{/if_eq}}
{{/each}}