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Why start a shell command with a backslash?
...on environment), then one also can't rely on command to not be overridden. From your own link: Thus, with no control over the execution environment, you cannot write shell scripts that are fully immune to tampering, unless you know that your code will be executed by dash, ksh, or bash (with the work...
How to check that a string is an int, but not a double, etc.?
...
How about using ctype_digit?
From the manual:
<?php
$strings = array('1820.20', '10002', 'wsl!12');
foreach ($strings as $testcase) {
if (ctype_digit($testcase)) {
echo "The string $testcase consists of all digits.\n";
} else {
...
TypeError: Illegal Invocation on console.log.apply
...
It may not work in cases when execution context changed from console to any other object:
This is expected because console.info expects its "this" reference to
be console, not window.
console.info("stuff")
stuff
undefined
console.info.call(this, "stuff")
TypeError: Illegal ...
Popup弹出菜单扩展 · App Inventor 2 中文网
...这一点。
从字符串设置菜单项
MenuItemsFromString属性在设计器和运行时都可用。单个项目定义用逗号分隔列出：
从列表设置菜单项
SetMenuItems方法允许将菜单项定义为列表：
从文件...
How to pass parameters to a partial view in ASP.NET MVC?
...irstName = firstName;
this.LastName = lastName;
}
}
then from your action result pass the model
return View("FullName", new FullNameViewModel("John", "Doe"));
and you will be able to access @Model.FirstName and @Model.LastName accordingly.
...
Find unmerged Git branches?
... in .xls file:
#!/usr/bin/env bash
echo "getting list of unmerged_branches from the remote"
file_name=unmerged_branches.xls`enter code here`
current_time=$(date "+%Y.%m.%d-%H.%M.%S")
for branch in `git branch -r --no-merged | grep -v HEAD`;
do echo -e `git show --format="%cd \\t%cr \\t%ae" $branch...
How can I check if a method is static using reflection?
...ons.unmodifiableList(methods);
}
Note: This method is actually dangerous from a security standpoint. Class.getMethods "bypass[es] SecurityManager checks depending on the immediate caller's class loader" (see section 6 of the Java secure coding guidelines).
Disclaimer: Not tested or even compiled....
LaTeX Optional Arguments
...
Example from the guide:
\newcommand{\example}[2][YYY]{Mandatory arg: #2;
Optional arg: #1.}
This defines \example to be a command with two arguments,
referred to as #1 and #2 in the {<definition...
Why does `a == b or c or d` always evaluate to True?
...ther.
In [1]: a,b,c,d=1,2,3,4
In [2]: a==b
Out[2]: False
But, inherited from the language C, Python evaluates the logical value of a non zero integer as True.
In [11]: if 3:
...: print ("yey")
...:
yey
Now, Python builds on that logic and let you use logic literals such as or on in...
Maximum Length of Command Line String
...
From the Microsoft documentation: Command prompt (Cmd. exe) command-line string limitation
On computers running Microsoft Windows XP or later, the maximum length of the string that you can use at the command prompt is 819...