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Check whether variable is number or string in JavaScript
...ted source can be found here),
var toString = Object.prototype.toString;
_.isString = function (obj) {
return toString.call(obj) == '[object String]';
}
This returns a boolean true for the following:
_.isString("Jonathan"); // true
_.isString(new String("Jonathan")); // true
...
How to hide first section header in UITableView (grouped style)
...dgeInsetsMake(-1.0f, 0.0f, 0.0f, 0.0);
}
Swift:
override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return section == 0 ? 1.0 : 32
}
override func viewDidLoad() {
super.viewDidLoad()
tableView.contentInset = UIEdgeInsets(top: -1, ...
How do I capture the output into a variable from an external process in PowerShell?
...d of piping to Out-String:
$cmdOutput = <command> 2>&1 | % { $_.ToString() };
in PS v3+ you can simplify to:
$cmdOutput = <command> 2>&1 | % ToString
(As a bonus, if the output isn't captured, this produces properly interleaved output even when printing to the console.)
Al...
Replacing all non-alphanumeric characters with empty strings
...
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How do I check if a directory exists? “is_dir”, “file_exists” or both?
...
I think realpath() may be the best way to validate if a path exist
http://www.php.net/realpath
Here is an example function:
<?php
/**
* Checks if a folder exist and return canonicalized absolute pathname (long version)
* @param string $folder the path being checked.
* @return mixed r...
How can you zip or unzip from the script using ONLY Windows' built-in capabilities?
...le for this.
See this link for some VBS way to do this.
https://superuser.com/questions/201371/create-zip-folder-from-the-command-line-windows
From Windows 8 on, .NET Framework 4.5 is installed by default, with System.IO.Compression.ZipArchive and PowerShell available, one can write scripts to ach...
PostgreSQL: How to pass parameters from command line?
...and then refer to the variables in sql as :v1, :v2 etc
select * from table_1 where id = :v1;
Please pay attention on how we pass string/date value using two quotes " '...' "
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Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
...swered Jun 17 '16 at 15:20
James_picJames_pic
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What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
...)! So pretty similar to a class definition. To understand this better, I recommend the following links for some further reading:
Namespacing your Javascript
Private members in Javascript (by Douglas Crockford)
EDIT
I forgot to mention. In that final (), you can pass anything you want inside. Fo...
How can one display images side by side in a GitHub README.md?
...ssible to add a title to each of the images?
– recipe_for_disaster
Jan 12 at 7:27
This is perfect! As it allows to spe...