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How to resolve “must be an instance of string, string given” prior to PHP 7?
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Determine whether an array contains a value [duplicate]
I need to determine if a value exists in an array.
18 Answers
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How to add new elements to an array?
I have the following code:
18 Answers
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In which scenario do I use a particular STL container?
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You now have unordered_map and unordered_set (and their multi variants) which are not in the flow chart but are good picks when you don't care about order but need to find elements by key. Their lookup is usually O(1) instead of O(log n).
– Aid...
How to force Chrome's script debugger to reload javascript?
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I've had that set all along, and now all of a sudden, I'm stuck with a certain file. Anyone find a solution?
– IronicMuffin
May 14 '12 at 13:25
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How to get an outline view in sublime texteditor?
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
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Conveniently Declaring Compile-Time Strings in C++
Being able to create and manipulate strings during compile-time in C++ has several useful applications. Although it is possible to create compile-time strings in C++, the process is very cumbersome, as the string needs to be declared as a variadic sequence of characters, e.g.
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Constructing pandas DataFrame from values in variables gives “ValueError: If using all scalar values
...in hand:
df = pd.DataFrame.from_records([{ 'A':a,'B':b }])
You can also set index, if you want, by:
df = pd.DataFrame.from_records([{ 'A':a,'B':b }], index='A')
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滚动布局管理器拓展 - ScrollArrangementHandler · App Inventor 2 中文网
...动事件处理
when HorizontalScrollHandler1.ScrollChanged scrollX
do
set Label_Position.Text to "当前位置: " & scrollX
// 到达右端事件
when HorizontalScrollHandler1.ReachRightEnd
do
show notification "已到达最右端"
// 垂直滚动事件处理
when VerticalScrollHandler1.S...
Best way to store a key=>value array in JavaScript?
...hods for iteration over the key/value pairs.
var map = new Map();
map.set('name', 'John');
map.set('id', 11);
// Get the full content of the Map
console.log(map); // Map { 'name' => 'John', 'id' => 11 }
Get value of the Map using key
console.log(map.get('name')); // John
console.log(...