Recent questions tagged Syntax

0 votes

515 views

1 answer

syntax - Python boolean expression and or

In python if you write something like foo==bar and spam or eggs python appears to return spam if the boolean ... the result of the expression. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

530 views

1 answer

syntax highlighting - Visual Studio 2015 RTM - Lost JavaScript support after update TypeScript Tools

I have lost the support for JavaScript files inside Visual Studio 2015 after updating the TypeScript tools from ... solution for this problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

653 views

1 answer

syntax - Are there binary literals in Java?

I want to declare my integer number by a binary literal. Is it possible in Java? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

615 views

1 answer

syntax - PHP - Returning the last line in a file?

I'm guessing it's fgets, but I can't find the specific syntax. I'm trying to read out (in a string I'm ... the last line added to a log file. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

435 views

1 answer

syntax - How to tell if a string contains valid Python code

If I have a string of Python code, how do I tell if it is valid, i.e., if entered at the Python ... execute the code, just check its syntax. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

772 views

1 answer

syntax - Double Underscore in PHP?

What does the double underscores in these lines of PHP code mean? $WPLD_Trans['Yes']=__('Yes',$WPLD_Domain); ... ]=__('No',$WPLD_Domain); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

499 views

1 answer

syntax - What is "?:" notation in JavaScript?

I found this snippet of code in my travels in researching JSON: var array = typeof objArray != 'object' ? JSON.parse ... I know what != means). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

599 views

1 answer

syntax - What does a backslash in C++ mean?

What does this code: (especially, what does a backslash '' ? ) s23_foo += s8_foo * s16_bar; I added the ... be relevant. Thanks for your help. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

674 views

1 answer

syntax - Why PHP variables start with a $ sign symbol?

Has anybody ever thought about this question. Why we must write $var_name = value; and not var_name = value;? Yes I ... is it a $ sign symbol? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

590 views

1 answer

syntax - Why doesn't C have binary literals?

I am frequently wishing I could do something like this in c: val1 &= 0b00001111; //clear high nibble val2 |= ... to make a 32 bit mask. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

473 views

1 answer

syntax - Why is declaration of the variable required inside a for-each loop in java

The usual form the of for each loop is this: for(Foo bar: bars){ bar.doThings(); } But if I want to retain bar ... for(;;){ // Do things } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

534 views

1 answer

syntax - How to include a quote in a raw Python string

Consider: >>> r"what"ever" SyntaxError: invalid syntax >>> r"what"ever" 'what"ever' So how do we get ... include both types of quotes? Related See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

591 views

1 answer

syntax - What are some example use cases for symbol literals in Scala?

The use of symbol literals is not immediately clear from what I've read up on Scala. Would anyone care ... 'HelloWorld vs "HelloWorld"? Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

605 views

1 answer

syntax - Automatic counter in Ruby for each?

I want to use a for-each and a counter: i=0 for blah in blahs puts i.to_s + " " + blah i+=1 end Is ... #{blah}" which is a lot more succinct. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Just Browsing Browsing

Most popular tags