24 lines
534 B
Markdown
24 lines
534 B
Markdown
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---
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title: Stack.attr()
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---
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The `Stack.attr()` method adds an attribute to the stack
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and returns the original stack.
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Setting the third parameter to `true` will replace the value of the
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attribute instead of adding it.
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## Stack.attr() signature
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```js
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Stack stack.attr(
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string name,
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mixed value,
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bool overwrite = false
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```
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If the third parameter is set to `true` it will call
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`this.attributes.set()` instead,
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thereby overwriting the value of the attribute.
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<Note>This method is chainable as it returns the Stack object</Note>
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