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How to stop a PowerShell script on the first error?
I want my PowerShell script to stop when any of the commands I run fail (like set -e in bash). I'm using both Powershell commands ( New-Object System.Net.WebClient ) and programs ( .\setup.exe ).
...
How can I get the behavior of GNU's readlink -f on a Mac?
...i.e., its absolute pathname.
If you want to, you can just build a shell script that uses vanilla readlink behavior to achieve the same thing. Here's an example. Obviously you could insert this in your own script where you'd like to call readlink -f
#!/bin/sh
TARGET_FILE=$1
cd `dirname $TARGE...
Warn user before leaving web page with unsaved changes
...vant keypresses like the Ctrl key.
Won't trigger on values set through JavaScript code.
Won't trigger on cutting or pasting text through context menus.
Won't work for virtual inputs like datepickers or checkbox/radiobutton beautifiers which save their value in a hidden input through JavaScript.
Th...
How to identify if a webpage is being loaded inside an iframe or directly into the browser window?
...
The description at MDN says that "if the document into which it's embedded has a different origin (such as having been located from a different domain), this is null."
– xeophin
Jan 8 '18 at 1...
How to set background color of HTML element using css properties in JavaScript
How can I set the background color of an HTML element using css in JavaScript?
17 Answers
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get CSS rule's percentage value in jQuery
...ossible!
You must first hide() the parent element. This will prevent JavaScript from calculating pixels for the child element.
$('.parent').hide();
var width = $('.child').width();
$('.parent').show();
alert(width);
See my example.
Now... I wonder if I'm first to discover this hack:)
Update:
...
How to find encoding of a file via script on Linux?
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here is an example script using file -I and iconv which works on MacOsX
For your question you need to use mv instead of iconv
#!/bin/bash
# 2016-02-08
# check encoding and convert files
for f in *.java
do
encoding=`file -I $f | cut -f 2 -d";...
Limit number of characters allowed in form input text field
...
Add the following to the header:
<script language="javascript" type="text/javascript">
function limitText(limitField, limitNum) {
if (limitField.value.length > limitNum) {
limitField.value = limitField.value.substring(0, limitNum);
}
}
&...
How do I get PHP errors to display?
...
To display all errors you need to:
1. Have these lines in the PHP script you're calling from the browser (typically index.php):
error_reporting(E_ALL);
ini_set('display_errors', '1');
2.(a) Make sure that this script has no syntax errors
—or—
2.(b) Set display_errors = On in your p...
JavaScript: Create and save file [duplicate]
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How to set location in this script when download?
– Bravo Yeung
Jun 4 '19 at 4:33
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show 7 mo...