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compare block helper for handlebars
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// {{compare unicorns ponies operator="<"}} | |
// I knew it, unicorns are just low-quality ponies! | |
// {{/compare}} | |
// | |
// (defaults to == if operator omitted) | |
// | |
// {{equal unicorns ponies }} | |
// That's amazing, unicorns are actually undercover ponies | |
// {{/equal}} | |
// (from http://doginthehat.com.au/2012/02/comparison-block-helper-for-handlebars-templates/) | |
Handlebars.registerHelper('compare', function(lvalue, rvalue, options) { | |
if (arguments.length < 3) | |
throw new Error("Handlerbars Helper 'compare' needs 2 parameters"); | |
var operator = options.hash.operator || "=="; | |
var operators = { | |
'==': function(l,r) { return l == r; }, | |
'===': function(l,r) { return l === r; }, | |
'!=': function(l,r) { return l != r; }, | |
'<': function(l,r) { return l < r; }, | |
'>': function(l,r) { return l > r; }, | |
'<=': function(l,r) { return l <= r; }, | |
'>=': function(l,r) { return l >= r; }, | |
'typeof': function(l,r) { return typeof l == r; } | |
} | |
if (!operators[operator]) | |
throw new Error("Handlerbars Helper 'compare' doesn't know the operator "+operator); | |
var result = operators[operator](lvalue,rvalue); | |
if( result ) { | |
return options.fn(this); | |
} else { | |
return options.inverse(this); | |
} | |
}); |
Super helpful!
Cool! Thanks Bro!
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Thanks!