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Check if $_POST exists
I'm trying to check whether a $_POST exists and if it does, print it inside another string, if not, don't print at all.
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How can I check that a form field is prefilled correctly using capybara?
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You can use an xpath query to check if there's an input element with a particular value (e.g. 'John'):
expect(page).to have_xpath("//input[@value='John']")
See http://www.w3schools.com/xpath/xpath_syntax.asp for more info.
For perhaps a prettier way:
exp...
Python - Check If Word Is In A String
I'm working with Python v2, and I'm trying to find out if you can tell if a word is in a string.
11 Answers
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How to ignore a property in class if null, using json.net
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As per James Newton King: If you create the serializer yourself rather than using JavaScriptConvert there is a NullValueHandling property which you can set to ignore.
Here's a sample:
JsonSerializer _jsonWriter = new JsonSerializer {
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Controller not a function, got undefined, while defining controllers globally
...pp', []).controller('ContactController', ContactController);
It is a breaking change but it can be turned off to use globals by using allowGlobals.
Example:-
angular.module('app')
.config(['$controllerProvider', function($controllerProvider) {
$controllerProvider.allowGlobals();
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HashMap get/put complexity
...nt hash which itself is constant time... but you could have a hash which takes a long time to compute, and if there are multiple items in the hash map which return the same hash code, get will have to iterate over them calling equals on each of them to find a match.
In the worst case, a HashMap has...
What is Weak Head Normal Form?
What does Weak Head Normal Form (WHNF) mean? What does Head Normal form (HNF) and Normal Form (NF) mean?
6 Answers
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iPhone Simulator - Simulate a slow connection?
... how the App might react when you are in a slow spot on the cellular network?
6 Answers
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windbg 备忘 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...0，本地活动的用户态调试；1，内核转储文件thread_index：kd，内核...Windbg：
[ ||system_index ] | process_index : thread_index>
system_index：0，本地活动的用户态调试；1，内核转储文件
thread_index：kd，内核转储；lkd，本地内核
|| (index) s 切...
Are tuples more efficient than lists in Python?
... answered Sep 16 '08 at 2:13
Mark HarrisonMark Harrison
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