Newbe Dev Stack

Example 1: install exact version npm npm install < package > @ < version > //example npm install express@3.0.0 Example 2: downgrade npm package to specific version npm install -g npm@version-no Example 3: npm downgrade package npm view < package > versions // lets see what versions of package are available npm install < package > @ < version > // install desired version. Remember about flags which maybe you want to use (eg. -g for global) // example for package 'express' npm install express@4.17.1

Example: how to make alert in javascript alert ( "Alert" )

Answer : == is a bash -specific alias for = , which performs a string (lexical) comparison instead of the -eq numeric comparison. (It's backwards from Perl: the word-style operators are numeric, the symbolic ones lexical.) To elaborate on bollovan's answer... There is no >= or <= comparison operator for strings. But you could use them with the ((...)) arithmetic command to compare integers. You can also use the other string comparison operators ( == , != , < , > , but not = ) to compare integers if you use them inside ((...)) . Examples Both [[ 01 -eq 1 ]] and (( 01 == 1 )) do integer comparisons. Both are true. Both [[ 01 == 1 ]] and [ 01 = 1 ] do string comparisons. Both are false. Both (( 01 -eq 1 )) and (( 01 = 1 )) will return an error. Note: The double bracket syntax [[...]] and the double parentheses syntax ((...)) are not supported by all shells. If you want to do integer comparison you will better use (( )), where you can a...

Example 1: how to print a string to console in c++ // Just some basic format # include <iostream> # include <string> using namespace std ; int main ( ) { cout << "Print a String" << endl ; } Example 2: how to grab all of user input c++ // cin with strings # include <iostream> # include <string> using namespace std ; int main ( ) { string mystr ; cout << "What's your name? " ; getline ( cin , mystr ) ; cout << "Hello " << mystr << ".\n" ; cout << "What is your favorite team? " ; getline ( cin , mystr ) ; cout << "I like " << mystr << " too!\n" ; return 0 ; } Example 3: cout value c++ # include <iostream> using namespace std ; int main ( ) { int a , b ; char str [ ] = "Hello Programmers" ; /* Single insertion operat...

Example 1: 1000x1000 in inches 1000x1000 = 10.416666667 Example 2: pixel to inches Assuming the pixel density is 96 dpi, there are 96 pixels per inch. Than 1 pixel = (1 / 96) inches.

Bash is the shell, or command language interpreter, for the GNU operating system. The name is an acronym for the ‘ Bourne-Again SHell ’, a pun on Stephen Bourne, the author of the direct ancestor of the current Unix shell sh , which appeared in the Seventh Edition Bell Labs Research version of Unix. Bash is largely compatible with sh and incorporates useful features from the Korn shell ksh and the C shell csh . It is intended to be a conformant implementation of the IEEE POSIX Shell and Tools portion of the IEEE POSIX specification ( IEEE Standard 1003.1). It offers functional improvements over sh for both interactive and programming use. While the GNU operating system provides other shells, including a version of csh , Bash is the default shell. Like other GNU software, Bash is quite portable. It currently runs on nearly every version of Unix and a few other operating systems - independently-supported ports exist for MS-DOS , OS/2 , and Windows platforms.

Answer : the solution what I found to work in my case $('#multiselect1').multiselect({ selectAllValue: 'multiselect-all', enableCaseInsensitiveFiltering: true, enableFiltering: true, maxHeight: '300', buttonWidth: '235', onChange: function(element, checked) { var brands = $('#multiselect1 option:selected'); var selected = []; $(brands).each(function(index, brand){ selected.push([$(this).val()]); }); console.log(selected); } }); Shorter version: $('#multiselect1').multiselect({ ... onChange: function() { console.log($('#multiselect1').val()); } }); more efficient, due to less DOM lookups: $('#multiselect1').multiselect({ // ... onChange: function() { var selected = this.$select.val(); // ... } });

Example: inch to cm 1 inch = 2.54 cm

Answer : A character cannot be both an alpha and a space. It can be an alpha or a space. To require that the string contains only alphas and spaces: string = input("Enter a string: ") if all(x.isalpha() or x.isspace() for x in string): print("Only alphabetical letters and spaces: yes") else: print("Only alphabetical letters and spaces: no") To require that the string contains at least one alpha and at least one space: if any(x.isalpha() for x in string) and any(x.isspace() for x in string): To require that the string contains at least one alpha, at least one space, and only alphas and spaces: if (any(x.isalpha() for x in string) and any(x.isspace() for x in string) and all(x.isalpha() or x.isspace() for x in string)): Test: >>> string = "PLEASE" >>> if (any(x.isalpha() for x in string) ... and any(x.isspace() for x in string) ... and all(x.isalpha() or x.isspace() for x in string)): ...

Example: how to add link to github readme [ I 'm an inline-style link](https://www.google.com) [I' m an inline-style link with title ] ( https://www.google.com "Google's Homepage" ) [ I 'm a reference-style link][Arbitrary case-insensitive reference text] [I' m a relative reference to a repository file ] ( .. /blob/master/LICENSE ) [ You can use numbers for reference-style link definitions ] [ 1 ] Or leave it empty and use the [ link text itself ] . URLs and URLs in angle brackets will automatically get turned into links. http://www.example.com or < http://www.example.com > and sometimes example.com ( but not on Github, for example ) . Some text to show that the reference links can follow later. [ arbitrary case-insensitive reference text ] : https://www.mozilla.org [ 1 ] : http://slashdot.org [ link text itself ] : http://www.reddit.com

Example: using latex to write algorithm \begin{program} \mbox{A fast exponentiation procedure:} \BEGIN \\ % \FOR i:=1 \TO 10 \STEP 1 \DO |expt|(2,i); \\ |newline|() \OD % \rcomment{This text will be set flush to the right margin} \WHERE \PROC |expt|(x,n) \BODY z:=1; \DO \IF n=0 \THEN \EXIT \FI; \DO \IF |odd|(n) \THEN \EXIT \FI; \COMMENT{This is a comment statement}; n:=n/2; x:=x*x \OD; \{ n>0 \}; n:=n-1; z:=z*x \OD; |print|(z) \ENDPROC \END \end{program}

Example 1: bootstrap align right To aligning div in bootstrap you can use bootstrap classes like 1. float-left 2. float-right 3. float-none < div class = " float-left " > Float left on all viewport sizes </ div > < br > < div class = " float-right " > Float right on all viewport sizes </ div > < br > < div class = " float-none " > Don't float on all viewport sizes </ div > Example 2: float in bootstrap Toggle floats on any element, across any breakpoint, using our responsive float utilities. < div class = " float-left " > Float left on all viewport sizes </ div > < br > < div class = " float-right " > Float right on all viewport sizes </ div > < br > < div class = " float-none " > Don't float on all viewport sizes </ div > Example 3: alighn right boostrap 4 < div class = " float-left " > F...

Example 1: string to array in php print_r ( explode ( ',' , $yourstring ) ) ; Example 2: Array to String Conversion in PHP $gadget = array ( 'computer' , 'mobile' , 'tablet' ) ; echo implode ( $arr ) ; Example 3: php Array to string conversion Using implode() function in Php ----------------------- Syntax implode(separator,array); Example <?php //assigning value to the array $dummyArr = array ( "Hello" , "Greppers," , "Ankur" , "here !" ) ; echo implode ( " " , $dummyArr ) ; // Use of implode function ?> Output: Hello Greppers, Ankur here ! Example 4: array to string conversion in php $person = [ 'name' => 'Jon' , 'age' => 26 , 'status' => null , 'friends' => [ 'Matt' , 'Kaci' , 'Jess' ] ] ; echo json_encode ( $person ) ; // {"name":...

Example 1: cdn ckeditor < script src = " https://cdn.ckeditor.com/4.14.0/standard/ckeditor.js " > </ script > Example 2: ckeditor cdn < script src = " https://cdn.ckeditor.com/ckeditor5/23.1.0/classic/ckeditor.js " > </ script >