Ember HTMLBars Helpers for {{if}} & {{unless}}: not, and, or, eq & is-array
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jmurphyau Add changelog
Added changelog after seeing issue 77. Makes sense.

Closes #77
Latest commit 54912c3 May 16, 2018


Ember Truth Helpers Build Status

HTMLBars template helpers for additional truth logic in if and unless statements.


Helper JavaScript HTMLBars Variable argument count allowed
eq if (a === b) {{if (eq a b)}} No
not-eq if (a !== b) {{if (not-eq a b)}} No
not if (!a) {{if (not a)}} Yes
and if (a && b) {{if (and a b)}} Yes
or if (a || b) {{if (or a b)}}     Yes
xor if (a && !b || !a && b) {{if (xor a b)}} No
gt if (a > b) {{if (gt a b)}} No
gte if (a >= b) {{if (gte a b)}} No
lt if (a < b) {{if (lt a b)}} No
lte if (a <= b) {{if (lte a b)}} No
is-array if (Ember.isArray(a)) {{if (is-array a)}} Yes
is-empty if (Ember.isEmpty(a)) {{if (is-empty a)}} No
is-equal if (Ember.isEqual(a, b)) {{if (is-equal a b)}} No



is-equal uses Ember.isEqual helper to evaluate equality of two values. eq should be sufficient for most applications. is-equal is necessary when trying to compare a complex object to a primitive value.


  • ember install ember-truth-helpers

Other Helpers


  • git clone https://github.com/jmurphyau/ember-truth-helpers.git
  • cd ember-truth-helpers
  • yarn install
  • ember server
  • Visit your app at http://localhost:4200.

Running Tests

  • yarn test (Runs ember try:testall to test your addon against multiple Ember versions)
  • ember test
  • ember test --server


  • ember build

For more information on using ember-cli, visit https://www.ember-cli.com/.