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harttle merged 1 commit into from
Jan 10, 2026
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docs: update docs for operators, fixes #846 #847

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46 changes: 46 additions & 0 deletions docs/source/tutorials/operators.md
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,52 @@ LiquidJS operators are very simple and different. There're 2 types of operators

Thus numerical operators are not supported and you cannot even plus two numbers like this `{% raw %}{{a + b}}{% endraw %}`, instead we need a filter `{% raw %}{{ a | plus: b}}{% endraw %}`. Actually `+` is a valid variable name in LiquidJS.

## Logic Operators

### not

Negates a condition. Returns `true` if the condition is false, and `false` if the condition is true.

Input
```liquid
{% if not user.active %}
User is inactive
{% endif %}
```

### and

Returns `true` if both conditions are true.

Input
```liquid
{% if user.age >= 18 and user.verified %}
Access granted
{% endif %}
```

### or

Returns `true` if at least one condition is true.

Input
```liquid
{% if user.isAdmin or user.isModerator %}
You have elevated privileges
{% endif %}
```

### contains

Checks if a string contains a substring, or if an array contains an element.

Input
```liquid
{% if product.title contains "Pack" %}
This is a pack
{% endif %}
```

## Precedence

1. Comparison operators, and `contains`. All comparison operators alongside `contains` have the same (highest) precedence.
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53 changes: 50 additions & 3 deletions docs/source/zh-cn/tutorials/operators.md
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Expand Up @@ -5,14 +5,61 @@ title: 运算符
LiquidJS 运算符非常简单也很特别，只支持两类运算符：

* 比较运算符：`==`, `!=`, `>`, `<`, `>=`, `<=`
* 逻辑运算符：`or`, `and`, `contains`
* 逻辑运算符：`not`, `or`, `and`, `contains`

因此普通的数学运算是不支持的，比如 `{% raw %}{{a + b}}{% endraw %}`。它的替代方案是过滤器 `{% raw %}{{ a | plus: b}}{% endraw %}`。事实上 `+` 在 LiquidJS 中是一个合法的变量名。

## 逻辑运算符

### not

对条件取反。如果条件为假则返回 `true`，如果条件为真则返回 `false`。

输入
```liquid
{% if not user.active %}
用户未激活
{% endif %}
```

### and

当两个条件都为真时返回 `true`。

输入
```liquid
{% if user.age >= 18 and user.verified %}
允许访问
{% endif %}
```

### or

当至少一个条件为真时返回 `true`。

输入
```liquid
{% if user.isAdmin or user.isModerator %}
您拥有提升的权限
{% endif %}
```

### contains

检查字符串是否包含子字符串，或数组是否包含元素。

输入
```liquid
{% if product.title contains "Pack" %}
这是一个套装
{% endif %}
```

## 优先级

1. 比较运算符。所有比较运算符具有同样的优先级，且高于逻辑运算符。
2. 逻辑运算符。所有逻辑运算符具有同样的有衔接。
1. 比较运算符和 `contains`。所有比较运算符和 `contains` 具有同样的（最高）优先级。
2. `not` 运算符。它的优先级略高于 `or` 和 `and`。
3. `or` 和 `and` 运算符。这些逻辑运算符具有同样的（最低）优先级。

## 结合性

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