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Why would a JavaScript variable start with a dollar sign? [duplicate]
I quite often see JavaScript with variables that start with a dollar sign. When/why would you choose to prefix a variable in this way?
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How to get the sizes of the tables of a MySQL database?
...th) DESC;" | head
For Drupal/drush solution, check the following example script which will display the biggest tables in use:
#!/bin/sh
DB_NAME=$(drush status --fields=db-name --field-labels=0 | tr -d '\r\n ')
drush sqlq "SELECT table_name AS 'Tables', round(((data_length + index_length) / 1024 /...
How to loop through array in jQuery?
...e odds are you'd have other problems; details).
ES5's forEach:
As of ECMAScript5, arrays have a forEach function on them which makes it easy to loop through the array:
substr.forEach(function(item) {
// do something with `item`
});
Link to docs
(Note: There are lots of other functions, not...
How to add onload event to a div element
...element
Example:
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<div id="somid">Some content</div>
<script type="text/javascript">
oQuickReply.swap('somid');
</script>
...
or - even better - just in front of </body>:
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<script type="text/javascript">
oQuickReply.swap('somid');
</script>...
TypeError: $ is not a function when calling jQuery function
I have a simple jQuery script in a WordPress plugin that is using a jQuery wrapper like this:
16 Answers
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How do you get the length of a string?
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but this still just uses javascript doesn't it? same as @Artem Barger's answer
– Malcolm Salvador
Jul 31 '17 at 1:37
add a commen...
Testing if a checkbox is checked with jQuery
...true or false, not on/off, by return and you can send it to your back-end script and do whatever you want.
– Zanoldor
Feb 15 '17 at 12:33
1
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How and why do I set up a C# build machine? [closed]
...ething else, or is there an equivalent of a cron job for running automated scripts?
A: I just installed visual studio on a fresh copy of a VM running a fresh, patched, install of a windows server OS. So you'd need the licenses to handle that. Hudson will install itself as a windows service and run...
What is the JavaScript equivalent of var_dump or print_r in PHP? [duplicate]
I would like to see the structure of object in JavaScript (for debugging). Is there anything similar to var_dump in PHP?
9 ...
What should every JavaScript programmer know? [closed]
Is there a set of things that every JavaScript programmer should know to be able to say "I know JavaScript"?
30 Answers
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