Dev Stack Source

Example 1: bootstrap 5 cdn < ! - - BS 5 - -> < link href = "https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta2/dist/css/bootstrap.min.css" rel = "stylesheet" integrity = "sha384-BmbxuPwQa2lc/FVzBcNJ7UAyJxM6wuqIj61tLrc4wSX0szH/Ev+nYRRuWlolflfl" crossorigin = "anonymous" > < script src = "https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta2/dist/js/bootstrap.bundle.min.js" integrity = "sha384-b5kHyXgcpbZJO/tY9Ul7kGkf1S0CWuKcCD38l8YkeH8z8QjE0GmW1gYU5S9FOnJ0" crossorigin = "anonymous" > < / script > Example 2: bootstrap 4.5 cdn < ! - - Bootstrap 4.5 CSS - -> < link rel = "stylesheet" href = "https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity = "sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin = "anonymous" > < ! - - Bootstrap JS Requirements - -> ...

Example 1: bootstrap cdn link < ! - - Latest compiled and minified CSS - -> < link rel = "stylesheet" href = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity = "sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin = "anonymous" > < ! - - Optional theme - -> < link rel = "stylesheet" href = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity = "sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin = "anonymous" > < ! - - Latest compiled and minified JavaScript - -> < script src = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity = "sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin = "anonymous" > < / script > Example 2: b...

Example 1: ifelse in r > a = c ( 5 , 7 , 2 , 9 ) > b = ifelse ( a %% 2 == 0 , "even" , "odd" ) # b: odd odd even odd Example 2: if and else if in r if ( test_expression1 ) { statement1 } else if ( test_expression2 ) { statement2 } else if ( test_expression3 ) { statement3 } else { statement4 }

Example 1: bootstrap 4 cdn < link rel = "stylesheet" href = "https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" > Example 2: bootstrap 4 cdn < ! - - Boostrap 4 CSS - -> < link rel = "stylesheet" href = "https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity = "sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin = "anonymous" > < script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity = "sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin = "anonymous" > < / script > < ! - - Boostrap JS - -> < script src = "https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity = "sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin = "ano...