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Populate data table from data reader
...ng in C# (MS VS2008) and have a question more about proper design than specific code.
5 Answers
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JavaScript validation for empty input field
...wer_c"].value;
var d = document.forms["Form"]["answer_d"].value;
if (a == null || a == "", b == null || b == "", c == null || c == "", d == null || d == "") {
alert("Please Fill All Required Field");
return false;
}
}
</script>
<form method="post" name="F...
How to find index of all occurrences of element in array?
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The .indexOf() method has an optional second parameter that specifies the index to start searching from, so you can call it in a loop to find all instances of a particular value:
function getAllIndexes(arr, val) {
var indexes = [], i = -1;
while ((i = arr.indexOf(val, i+1)) != -1)...
Closing WebSocket correctly (HTML5, Javascript)
...as wondering, how do I close the connection gracefully? Like, what happens if user refreshes the page, or just closes the browser?
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What is the point of noreturn?
...ilers to make some optimizations and generate better warnings. For example if f has the noreturn attribute, the compiler could warn you about g() being dead code when you write f(); g();. Similarly the compiler will know not to warn you about missing return statements after calls to f().
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Find all elements on a page whose element ID contains a certain text using jQuery
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If you're finding by Contains then it'll be like this
$("input[id*='DiscountType']").each(function (i, el) {
//It'll be an array of elements
});
If you're finding by Starts With then it'll be like this
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“git pull” or “git merge” between master and development branches
...ill eventually merge everything from develop into master . I have two different workflows in mind:
5 Answers
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Batch file. Delete all files and folders in a directory
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Note: If you want to bypass "Are you sure you want to delete..." prompt youll need to add /F Q flags: del . /F /Q
– Rhyuk
Apr 22 '13 at 20:41
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Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
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You need to verify the permissions of the authorized_keys file and the folder / parent folders in which it is located.
chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys
For more information see this page.
You may also need to change/ver...
Parallel.ForEach vs Task.Run and Task.WhenAll
What are the differences between using Parallel.ForEach or Task.Run() to start a set of tasks asynchronously?
4 Answers
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