Having trouble retrieving text from 'td' tags using casperjs with the following html code:
<div class="div_table_body">
<table class="part_listing">
<tr><td>sometext</td></tr>
<tr><td>sometext2</td></tr>
...
</table>
</div>
I attempted to extract the text within the 'td' tags using casperjs but I keep getting a NULL value. Can someone please help me identify where the issue lies in my code?
This code snippet modifies the getLinks function to extract and return outerHTML strings for the td elements. It is important to note that you cannot utilize the getHTML() method within the getLinks function. Casper effectively evaluates and runs the getLinks function on a webpage, hence it must be written in vanilla JavaScript.
function getLinks() {
var tr = document.querySelectorAll('div.div_table_body table.part_listing tr');
return Array.prototype.map.call(tr, function (e) {
return e.querySelector('td').outerHTML;
});
}
To retrieve data using Casper exclusively:
casper.start('http://www.example.com', function() {
this.getHTML('div.div_table_body table.part_listing tr > td', true);
});
I have adjusted your selector to target the td elements within the trs.
With CasperJS, you have the capability to retrieve the textContent of elements by utilizing getElementsInfo() along with the corresponding .text attribute:
Quick Solution:
var td = this.getElementsInfo('.div_table_body > .part_listing > tbody > tr > td');
this.echo(td[0].text); // Output: sometext
Detailed Explanation:
var casper = require('casper').create();
casper.start('https://www.example.com/', function () {
var td = this.getElementsInfo('.div_table_body > .part_listing > tbody > tr > td');
var td_array = [].map.call(td, function (element) {
return element.text.trim();
});
this.echo(td_array); // Output: sometext,sometext2
});
casper.run();
This code snippet will provide an array containing the values [sometext, sometext2].
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