syntax-error

问题 when I tried to build my app on ios-simulator it says : bundling failed: SyntaxError: /Users/MyName/MyApp/node_modules/react-native/node_modules/react-native/Libraries/Components/Switch/Switch.js: Support for the experimental syntax nullishCoalescingOperator isn't currently enabled (167:52): 165 | {...props} 166 | {...platformProps} > 167 | accessibilityRole={props.accessibilityRole ?? 'button'} | ^ 168 | onChange={this._handleChange} 169 | onResponderTerminationRequest={returnsFalse} 170 |

问题 when I tried to build my app on ios-simulator it says : bundling failed: SyntaxError: /Users/MyName/MyApp/node_modules/react-native/node_modules/react-native/Libraries/Components/Switch/Switch.js: Support for the experimental syntax nullishCoalescingOperator isn't currently enabled (167:52): 165 | {...props} 166 | {...platformProps} > 167 | accessibilityRole={props.accessibilityRole ?? 'button'} | ^ 168 | onChange={this._handleChange} 169 | onResponderTerminationRequest={returnsFalse} 170 |

问题 I wonder why this is a SyntaxError in Python 3.4: some_function( filename = "foobar.c", **kwargs, ) It works when removing the trailing comma after **kwargs . 回答1: As pointed out by vaultah (who for some reason didn’t bother to post an answer), this was reported on the issue tracker and has been changed since. The syntax will work fine starting with Python 3.6. To be explicit, yes, I want to allow trailing comma even after *args or **kwds . And that's what the patch does. —Guido van Rossum

问题 This question already has answers here : Reference - What does this error mean in PHP? (35 answers) Closed 4 years ago . The line 107 in the below code is $sql="INSERT INTO " $table_name " (confirm_code,name,password,email,address,phone,education,date_of_birth) VALUES ('".$confirm_code."','".$name."','".$pwd."','".$email."','".$adres."','".$phno."','".$educon."','".$dob."') "; " i am getting unexpected T_VARIABLE; <?php if(isset($_POST['Register'])) { $name= $_POST['uname']; $pwd= $_POST[

问题 I am making a tic-tac-toe program in python. I have two questions: How to create a trick to terminate the move() when we have created a diagonal or a line(xxx or OOO) in the game. In my program some error is occurring::in line 28::(UnboundLocalError: local variable 'stop' referenced before assignment) My code is:: import random board = {"top-l":" ","top-m":" ","top-r":" ","mid-l":" ","mid-m":" ","mid-r":" ","low-l":" ","low-m":" ","low-r":" "} def print_board(board): print( board["top-l"] + "

问题 My code gives me the error Parse error: syntax error, unexpected T_DOUBLE_ARROW, expecting ')' line 208 I keep getting this but it looks correct? Line 208 which is the second down. array( "name" => "Colour Scheme", "desc" => "Select the colour scheme for the theme", "id" => $shortname."_color_scheme", "type" => "select", "options" => array("blue", "red", "green"), "std" => "blue"), please advise! Thanks 回答1: T_DOUBLE_ARROW is the token for => , so you have one which appears somewhere the

问题 it's me again - I'll get to know this language better eventually. Basically - I have a big table of data that has autofilter on - range "$B$5:$Z$1697" However, there is an additional filter on the R column that I want to be toggled on or off. Therefore I need an If statement that says when the additional filter is on, remove, whereas, if the filter is not on at the time you press the button - apply it. I've played around with this and watched more videos that I care to admit. However, there

问题 I tried to run this example from the docs in the Jython interpreter: http://www.jython.org/docs/library/functions.html class C(object): def __init__(self): self._x = None @property def x(self): """I'm the 'x' property.""" return self._x @x.setter def x(self, value): self._x = value @x.deleter def x(self): del self._x Just entering the first 4 lines (up to and including @property ) yields a SyntaxError: >>> class C(object): ... def __init__(self): ... self._x = None ... @property File "<stdin>

问题 I tried to run this example from the docs in the Jython interpreter: http://www.jython.org/docs/library/functions.html class C(object): def __init__(self): self._x = None @property def x(self): """I'm the 'x' property.""" return self._x @x.setter def x(self, value): self._x = value @x.deleter def x(self): del self._x Just entering the first 4 lines (up to and including @property ) yields a SyntaxError: >>> class C(object): ... def __init__(self): ... self._x = None ... @property File "<stdin>

问题 This question already has answers here : What do numbers starting with 0 mean in python? (9 answers) Closed 6 years ago . Python seems to be able to accept leading zeros for any number except 08 or 09. For instance, a = 04 works in the interpreter but a = 08 returns SyntaxError: invalid token I'm using python 2.7.3 on OSX, and others have been able to duplicate the error. What gives? 回答1: Numbers with a leading zero in them are interpreted as octal, where the digits 8 and 9 don't exist. It's