add example

This commit is contained in:
Martin Angers
2012-09-05 10:40:16 -04:00
parent 454e21b28a
commit 5aae70d501
2 changed files with 88 additions and 2 deletions
+45 -2
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@@ -23,7 +23,7 @@ jQuery often has many variants for the same function (no argument, a selector st
* When the jQuery equivalent can be called with no argument, it has the same name as jQuery for the no argument signature (e.g.: `Prev()`), and the version with a selector string argument is called `XxxFiltered()` (e.g.: `PrevFiltered()`)
* When the jQuery equivalent **requires** one argument, the same name as jQuery is used for the selector string version (e.g.: `Is()`)
* The signatures accepting a jQuery object as argument are defined in GoQuery as `XxxSelection()` and take a `*Selection` object as argument (e.g.: `FilterSelection()`)
* The signatures accepting a DOM element as argument in jQuery are defined in GoQuery as `XxxNodes()` and take a variadic argument of type `*html.Node`(e.g.: `FilterNodes()`)
* The signatures accepting a DOM element as argument in jQuery are defined in GoQuery as `XxxNodes()` and take a variadic argument of type `*html.Node` (e.g.: `FilterNodes()`)
* Finally, the signatures accepting a function as argument in jQuery are defined in GoQuery as `XxxFunction()` and take a function as argument (e.g.: `FilterFunction()`)
GoQuery's complete [godoc reference documentation can be found here][doc].
@@ -32,7 +32,50 @@ Please note that Cascadia's selectors do NOT necessarily match all supported sel
## Examples
Coming soon...
Taken from example_test.go:
import (
"fmt"
// In real use, this import would be required (not in this example, since it
// is part of the goquery package)
//"github.com/PuerkitoBio/goquery"
"strconv"
)
// This example scrapes the 10 reviews shown on the home page of MetalReview.com,
// the best metal review site on the web :) (no, I'm not affiliated with them)
func ExampleScrape_MetalReview() {
// Load the HTML document (in real use, the type would be *goquery.Document)
var doc *Document
var e error
if doc, e = NewDocument("http://metalreview.com"); e != nil {
panic(e.Error())
}
// Find the review items (the type of the Selection would be *goquery.Selection)
doc.Root.Find(".slider-row:nth-child(1) .slider-item").Each(func(i int, s *Selection) {
var band, title string
var score float64
// For each item found, get the band, title and score, and print it
band = s.Find("strong").Text()
title = s.Find("em").Text()
score, e := strconv.ParseFloat(s.Find(".score").Text(), 64)
if e != nil {
// Not a valid float, ignore score
fmt.Printf("Review %d: %s - %s", i, band, title)
} else {
// Print all, including score
fmt.Printf("Review %d: %s - %s (%2.1f).\n", i, band, title, score)
}
})
// To see the output of the Example while running the test suite (go test), simply
// remove the leading "x" before Output on the next line. This will cause the
// example to fail (all the "real" tests should pass).
// xOutput: volutarily fail the Example output.
}
## TODOs
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@@ -0,0 +1,43 @@
package goquery
import (
"fmt"
// In real use, this import would be required (not in this example, since it
// is part of the goquery package)
//"github.com/PuerkitoBio/goquery"
"strconv"
)
// This example scrapes the 10 reviews shown on the home page of MetalReview.com,
// the best metal review site on the web :) (and no, I'm not affiliated to them!)
func ExampleScrape_MetalReview() {
// Load the HTML document (in real use, the type would be *goquery.Document)
var doc *Document
var e error
if doc, e = NewDocument("http://metalreview.com"); e != nil {
panic(e.Error())
}
// Find the review items (the type of the Selection would be *goquery.Selection)
doc.Root.Find(".slider-row:nth-child(1) .slider-item").Each(func(i int, s *Selection) {
var band, title string
var score float64
// For each item found, get the band, title and score, and print it
band = s.Find("strong").Text()
title = s.Find("em").Text()
score, e := strconv.ParseFloat(s.Find(".score").Text(), 64)
if e != nil {
// Not a valid float, ignore score
fmt.Printf("Review %d: %s - %s", i, band, title)
} else {
// Print all, including score
fmt.Printf("Review %d: %s - %s (%2.1f).\n", i, band, title, score)
}
})
// To see the output of the Example while running the test suite (go test), simply
// remove the leading "x" before Output on the next line. This will cause the
// example to fail (all the "real" tests should pass).
// xOutput: volutarily fail the Example output.
}