大约有 15,000 项符合查询结果（耗时：0.0407秒） [XML]
Checking if a string array contains a value, and if so, getting its position
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You could use the Array.IndexOf method:
string[] stringArray = { "text1", "text2", "text3", "text4" };
string value = "text3";
int pos = Array.IndexOf(stringArray, value);
if (pos > -1)
{
// the array contains the string and the pos variable
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How to get all registered routes in Express?
I have a web application built using Node.js and Express. Now I would like to list all registered routes with their appropriate methods.
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Can I use assert on Android devices?
...sn't answer the question (I agree with @Martin 's comment). Other answers explain how to make the assert keyword function properly, e.g. run "adb shell setprop debug.assert 1"
– jfritz42
Nov 8 '12 at 16:36
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Gradient of n colors ranging from color 1 and color 2
I often work with ggplot2 that makes gradients nice ( click here for an example ). I have a need to work in base and I think scales can be used there to create color gradients as well but I'm severely off the mark on how. The basic goal is generate a palette of n colors that ranges from x colo...
Converting Python dict to kwargs?
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Here is a complete example showing how to use the ** operator to pass values from a dictionary as keyword arguments.
>>> def f(x=2):
... print(x)
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>>> new_x = {'x': 4}
>>> f() # default value x=2
2
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Replace a character at a specific index in a string?
I'm trying to replace a character at a specific index in a string.
8 Answers
8
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Check if bash variable equals 0 [duplicate]
...epth and I would like to test if it equals 0. In case yes, I want to stop executing of script. So far I have:
6 Answers
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How to count duplicate value in an array in javascript
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the extra if statement after the loop is unnecessary... just use for (var i = 0; i <= array_elements.length; i++) { or <= instead of <.
– EmmaGamma
Feb 9 '15 at 1:58
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Convert RGBA PNG to RGB with PIL
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This code was causing a error for me: tuple index out of range. I fixed this by following another question(stackoverflow.com/questions/1962795/…). I had to convert the PNG to RGBA first and then slice it: alpha = img.split()[-1] then use that on the background mask.
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Does the default constructor initialize built-in types?
... other means. Not by default constructor, nor by constructor at all.
For example, there's a widespread incorrect belief that for class C the syntax C() always invokes default constructor. In reality though, the syntax C() performs so called value-initialization of the class instance. It will only ...