CSC/ECE 517 Fall 2012/ch1b 1w60 ac: Difference between revisions
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===The Map & Grep Functions=== | ===The Map & Grep Functions=== | ||
==The yield() Function== | ==The yield() Function== | ||
===What Is It?=== | |||
Simply put, the yield function in Ruby allows the execution of a code block. The code block used by the yield function can be passed as a parameter to the function using yield, or it can be declared elsewhere. | |||
===Syntax=== | ===Syntax=== | ||
In it's most basic form, the yield function can be called with simply: | |||
<pre> | |||
yield | |||
</pre> | |||
You can also pass parameters to the yield function, like so: | |||
<pre> | |||
yield parameter | |||
</pre> | |||
===How It Works=== | ===How It Works=== | ||
===Why It's Useful=== | ===Why It's Useful=== | ||
Revision as of 21:39, 29 September 2012
SaaS - 3.8 yield()
Introduction (Preface)
Code Blocks & Closures
The Map & Grep Functions
The yield() Function
What Is It?
Simply put, the yield function in Ruby allows the execution of a code block. The code block used by the yield function can be passed as a parameter to the function using yield, or it can be declared elsewhere.
Syntax
In it's most basic form, the yield function can be called with simply:
yield
You can also pass parameters to the yield function, like so:
yield parameter