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What is the best way to trigger onchange event in react js

... have a value setter in their constructor if ( inputTypes.indexOf(node.__proto__.constructor) >-1 ) { const setValue = Object.getOwnPropertyDescriptor(node.__proto__, 'value').set; const event = new Event('input', { bubbles: true }); setValue.call(node, value); ...
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What does @: (at symbol colon) mean in a Makefile?

...nd nothing gets done. For example (from Linux's scripts/Makefile.clean): __clean: $(subdir-ymn) ifneq ($(strip $(__clean-files)),) +$(call cmd,clean) endif ifneq ($(strip $(__clean-dirs)),) +$(call cmd,cleandir) endif ifneq ($(strip $(clean-rule)),) +$(clean-rule) endif @: ...
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Difference between std::result_of and decltype

I have some trouble understanding the need for std::result_of in C++0x. If I understood correctly, result_of is used to obtain the resulting type of invoking a function object with certain types of parameters. For example: ...
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awk without printing newline

... awk '{sum+=$3}; END {printf "%f",sum/NR}' ${file}_${f}_v1.xls >> to-plot-p.xls print will insert a newline by default. You dont want that to happen, hence use printf instead. share |...
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How to autosize a textarea using Prototype?

...ns) { this.textarea = $(textarea); this.options = $H({ 'min_height' : 30, 'max_length' : 400 }).update(options); this.textarea.observe('keyup', this.refresh.bind(this)); this._shadow = new Element('div').setStyle({ lineHeight : this.textarea.getStyle('lineHe...
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Trying to mock datetime.date.today(), but not working

...ock.patch('datetime.date.today') def test(): datetime.date.today.return_value = date(2010, 1, 1) print datetime.date.today() Unfortunately, this won't work: >>> test() Traceback (most recent call last): File "<stdin>", line 1, in <module> File "build/bdist.macosx-...
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Principles for Modeling CouchDB Documents

...s built out of array keys. Using your example above, we can output the post_id, then the type of thing we're referencing, then its ID (if needed). If we then output the id of the referenced document into an object in the value that's returned we can use the 'include_docs' query param to include thos...
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PDO closing connection

...>connection = new PDO(); $this->connection->query('KILL CONNECTION_ID()'); $this->connection = null; share | improve this answer | follow | ...
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Is there a NumPy function to return the first index of something in an array?

... an index error if none exist) rows, columns = np.where(array==item); first_idx = sorted([r for r, c in zip(rows, columns) if c == 0])[0] – BrT Jan 15 '13 at 13:44 ...
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What is Func, how and when is it used

...PrintListToConsole<T> { private PrintListConsoleRender<T> _renderer; public void SetRenderer(PrintListConsoleRender<T> r) { // this is the point where I can personalize the render mechanism _renderer = r; } public void PrintToConsole(List<T>...