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Postgres: INSERT if does not exist already

... One approach would be to create a non-constrained (no unique indexes) table to insert all your data into and do a select distinct from that to do your insert into your hundred table. So high level would be. I assume all three columns are distinct in my example so for step3 change the...
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Create Directory When Writing To File In Node.js

...rname = path.normalize(dirname).split(path.sep); dirname.forEach((sdir,index)=>{ var pathInQuestion = dirname.slice(0,index+1).join(path.sep); if((!fs.isDir(pathInQuestion)) && pathInQuestion) fs.mkdirSync(pathInQuestion); }); }; ...
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How can I count the number of matches for a regex?

... i.e. this behavior: aaaa aa aa aa You have to search for a match at index <start of last match> + 1 as follows: String hello = "aaaa"; Pattern pattern = Pattern.compile("aa"); Matcher matcher = pattern.matcher(hello); int count = 0; int i = 0; while (matcher.find(i)) { count++; ...
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How to develop Desktop Apps using HTML/CSS/JavaScript? [closed]

First, I'm not interested in doing this professionally. I am a web developer, a coworker of mine recently left for Spotify and said he will be working mostly in JavaScript for the Spotify Desktop app. He said it uses "Chrome frame" and everything inside is done like a web app (HTML/JS/CSS). ...
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Yes or No confirm box using jQuery

...false; } }); </script> These codes works for me, but I'm not really sure if this is proper. What do you think? share | improve this answer | follow ...
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jquery.validate.unobtrusive not working with dynamic injected elements

...ate it to include the code in the comments otherwise it can break. Specifically, change the two selector lines to double quote the id. – Ryan O'Neill Jul 14 '11 at 19:50 1 ...
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How do I dynamically assign properties to an object in TypeScript?

... Index types It is possible to denote obj as any, but that defeats the whole purpose of using typescript. obj = {} implies obj is an Object. Marking it as any makes no sense. To accomplish the desired consistency an interface ...
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I have an error: setOnItemClickListener cannot be used with a spinner, what is wrong?

...nife: @OnItemSelected(R.id.spinner) public void onSpinnerItemSelected(int index){ // ... } share | improve this answer | follow | ...
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Git status shows files as changed even though contents are the same

... resolved this problem using following steps Remove every file from Git's index. git rm --cached -r . Rewrite the Git index to pick up all the new line endings. git reset --hard Note that step 2 may remove your local changes. Solution was part of steps described on git site https://help.github.c...
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Why do stacks typically grow downwards?

... run "downhill" (with the stack advancing toward lower memory) to simplify indexing into the stack from the user's program (positive indexing) and to simplify displaying the contents of the stack from a front panel. share ...