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Difference between variable declaration syntaxes in Javascript (including global variables)?

...al terms they're not usually big ones. There's a fourth way, and as of ES2015 (ES6) there's two more. I've added the fourth way at the end, but inserted the ES2015 ways after #1 (you'll see why), so we have: var a = 0; // 1 let a = 0; // 1.1 (new with ES2015) const a = 0; // 1.2 (new wit...
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How to reference the initial commit?

...newer, you can use the --max-parents option: $ git rev-list --max-parents=0 HEAD Otherwise, you can get list of all parentless (root) commits accessible from current branch using: $ git rev-list --parents HEAD | egrep "^[a-f0-9]{40}$" ...
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find without recursion

...of direc- tories below the command line arguments. `-maxdepth 0' means only apply the tests and actions to the command line arguments. Your options basically are: # Do NOT show hidden files (beginning with ".", i.e., .*): find DirsRoot/* -maxdepth 0 -type f Or: # DO show ...
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Instance attribute attribute_name defined outside __init__

... 170 The idea behind this message is for the sake of readability. We expect to find all the attribute...
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jquery if div id has children

... if ( $('#myfav').children().length > 0 ) { // do something } This should work. The children() function returns a JQuery object that contains the children. So you just need to check the size and see if it has at least one child. ...
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Convert datetime to Unix timestamp and convert it back in python

I have dt = datetime(2013,9,1,11) , and I would like to get a Unix timestamp of this datetime object. 11 Answers ...
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Get String in YYYYMMDD format from JS date object?

... this.getDate(); return [this.getFullYear(), (mm>9 ? '' : '0') + mm, (dd>9 ? '' : '0') + dd ].join(''); }; var date = new Date(); date.yyyymmdd(); share | imp...
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What regular expression will match valid international phone numbers?

... \+(9[976]\d|8[987530]\d|6[987]\d|5[90]\d|42\d|3[875]\d| 2[98654321]\d|9[8543210]|8[6421]|6[6543210]|5[87654321]| 4[987654310]|3[9643210]|2[70]|7|1)\d{1,14}$ Is the correct format for matching a generic international phone number. I replaced t...
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The maximum value for an int type in Go

... 10 Answers 10 Active ...
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Formatting Phone Numbers in PHP

... and need to be able to convert the sender's phone number from +11234567890 to 123-456-7890 so it can be compared to records in a MySQL database . ...