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JavaScript validation for empty input field
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<script type="text/javascript">
function validateForm() {
var a = document.f...
Is it safe to remove selected keys from map within a range loop?
...stom type that implements the func (a T) expired() bool interface. For purposes of this example, you could try: m := make(map[int]int) /* populate m here somehow */ for key := range (m) { if key % 2 == 0 { /* this is just some condition, such as calling expired */ delete(m, key); } }
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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 · App Inventor 2 中文网
... 隐私策略和使用条款 技术支持 service@fun123.cn
Python's most efficient way to choose longest string in list?
...the Python documentation itself, you can use max:
>>> mylist = ['123','123456','1234']
>>> print max(mylist, key=len)
123456
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How to remove leading zeros using C#
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This is the code you need:
string strInput = "0001234";
strInput = strInput.TrimStart('0');
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How to output a multiline string in Bash?
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Here documents are often used for this purpose.
cat << EOF
usage: up [--level <n>| -n <levels>][--help][--version]
Report bugs to:
up home page:
EOF
They are supported in all Bourne-derived shells including all versions of Bash.
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Remove file extension from a file name string
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String.LastIndexOf would work.
string fileName= "abc.123.txt";
int fileExtPos = fileName.LastIndexOf(".");
if (fileExtPos >= 0 )
fileName= fileName.Substring(0, fileExtPos);
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How to update Ruby to 1.9.x on Mac?
...y Version Manager) is the Standard for upgrading your Ruby installation on OSX: https://rvm.io
To get started, open a Terminal Window and issue the following command:
\curl -L https://get.rvm.io | bash -s stable --ruby
( you will need to trust the RVM Dev Team that the command is not malicious ...
How to increase heap size of an android application?
... work on Gingerbread and above.
The only way to have as large a limit as possible is to do memory intensive tasks via the NDK, as the NDK does not impose memory limits like the SDK.
Alternatively, you could only load the part of the model that is currently in view, and load the rest as you need it...
Convert boolean result into number/integer
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Imho the best solution is:
fooBar | 0
This is used in asm.js to force integer type.
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