大约有 6,886 项符合查询结果(耗时:0.0225秒) [XML]

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How to find indices of all occurrences of one string in another in JavaScript?

...dices = []; while ( (result = regex.exec(str)) ) { indices.push(result.index); } UPDATE I failed to spot in the original question that the search string needs to be a variable. I've written another version to deal with this case that uses indexOf, so you're back to where you started. As point...
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How to check if array element exists or not in javascript?

... Use typeof arrayName[index] === 'undefined' i.e. if(typeof arrayName[index] === 'undefined') { // does not exist } else { // does exist } share | ...
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Pandas convert dataframe to array of tuples

... list(data_set.itertuples(index=False)) As of 17.1, the above will return a list of namedtuples. If you want a list of ordinary tuples, pass name=None as an argument: list(data_set.itertuples(index=False, name=None)) ...
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Jquery insert new row into table at a certain index

...) like this: $('#my_table > tbody > tr').eq(i-1).after(html); The indexes are 0 based, so to be the 4th row, you need i-1, since .eq(3) would be the 4th row, you need to go back to the 3rd row (2) and insert .after() that. ...
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Find an item in List by LINQ?

... If you want the index of the element, this will do it: int index = list.Select((item, i) => new { Item = item, Index = i }) .First(x => x.Item == search).Index; // or var tagged = list.Select((item, i) => new { Ite...
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Is there a concise way to iterate over a stream with indices in Java 8?

...s there a concise way to iterate over a stream whilst having access to the index in the stream? 22 Answers ...
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How to shift a column in Pandas DataFrame

... The result is missing ##5. Is there an easy way in pandas to extend the index when using shift? – Waylon Walker May 19 '17 at 15:54 ...
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How do you make Git ignore files without using .gitignore?

...See also this SO question) The other two solutions involve updating the index (git update-index): git update-index --assume-unchanged: see "Git: untrack a file in local repo only and keep it in the remote repo". It is mentioned by Elijah Lynn in the comments. You can even ignore a folder co...
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Split value from one field to two

...S VARCHAR(255) DETERMINISTIC BEGIN RETURN REPLACE(SUBSTRING(SUBSTRING_INDEX(x, delim, pos), LENGTH(SUBSTRING_INDEX(x, delim, pos -1)) + 1), delim, ''); END$$ DELIMITER ; you would be able to build your query as follows: SELECT SPLIT_STR(membername, ' ', 1) as memberfirst, ...
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Table row and column number in jQuery

... You can use the Core/index function in a given context, for example you can check the index of the TD in it's parent TR to get the column number, and you can check the TR index on the Table, to get the row number: $('td').click(function(){ var...