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How do you disable viewport zooming on Mobile Safari?
... got it working in iOS 12 with the following code:
if (/iPad|iPhone|iPod/.test(navigator.userAgent)) {
window.document.addEventListener('touchmove', e => {
if(e.scale !== 1) {
e.preventDefault();
}
}, {passive: false});
}
With the first if statement I ensure it will only exec...
How to install mongoDB on windows?
I am trying to test out mongoDB and see if it is anything for me. I downloaded the 32bit windows version, but have no idea on how to continue from now on.
...
How to write a:hover in inline CSS?
...t link, and I really wish it worked, sadly it does not. Just to confirm, I tested using the syntax style="{color:green;} :hover { color: red; }" and firefox managed to color the link green, but ignored the hover. Chrome ignored both. Continued testing would be pretty pointless.
...
How to get element by class name? [duplicate]
...entsByClassName
suppose you have some elements and applied a class name 'test', so, you can get elements like as following
var tests = document.getElementsByClassName('test');
its returns an instance NodeList, or its superset: HTMLCollection (FF).
Read more
...
Matplotlib scatter plot with different text at each data point
... plt.text(x+.03, y+.03, word, fontsize=9)
plt.show()
M_reduced_plot_test = np.array([[1, 1], [-1, -1], [1, -1], [-1, 1], [0, 0]])
word2Ind_plot_test = {'test1': 0, 'test2': 1, 'test3': 2, 'test4': 3, 'test5': 4}
words = ['test1', 'test2', 'test3', 'test4', 'test5']
plot_embeddings(M_reduced_p...
Differences between C++ string == and compare()?
... are relevant differences. Although I'm glad Bo Persson shows that the two tests will definitely return the same value. !s.compare(t) and s == t will return the same value, but the compare function provides more information than s == t, and s == t is more readable when you don't care how the strings...
Command line progress bar in Java
...ersion>
</dependency>
Usage:
ProgressBar pb = new ProgressBar("Test", 100); // name, initial max
// Use ProgressBar("Test", 100, ProgressBarStyle.ASCII) if you want ASCII output style
pb.start(); // the progress bar starts timing
// Or you could combine these two lines like this:
// P...
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...8%AF%9D
1、没NU下：
页面meta=utf8：（要求长度为：6）
test1.asp?q=%D0%A6%BB%B0 乱码（Ц）: 长度为4 － 长度不够
test1.asp?q=%E7%AC%91%E8%AF%9D 正常 : 长度为6
页面meta=gbk：（要求长度为：4）
test2.asp?q=%D0%A6%BB%B0 正常 : ...
How do I partially update an object in MongoDB so the new object will overlay / merge with the exist
...operties of those objects.
Given the object you specified above:
> db.test.insert({"id": "test_object", "some_key": {"param1": "val1", "param2": "val2", "param3": "val3"}})
WriteResult({ "nInserted" : 1 })
We can update just some_key.param2 and some_key.param3:
> db.test.findAndModify({
....
When to use static vs instantiated classes
...
One thing about static methods/classes is that they don't facilitate unit testing (at least in PHP, but probably in other languages too).
Another thing about static data is that only one instance of it exists in your program : if you set MyClass::$myData to some value somewhere, it'll have this va...