Recent questions tagged IF

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if statement - Sass - Check which kind of value a variable has

Suppose i have a variable: $var: 5px; but somewhere in code its value have changed in to possible color, number ... to do this or function? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - Difference between parentheses and brackets in Bash conditionals

While learning a bit about bash, I come to see four types of ways of working with if statements: Single ... and Square Brackets in bash. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - Java if-if-else behavior

I wrote a simple if/else in my code which worked fine. Later I added another level of if under the ... makes you expect without adding braces? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - How can I port C++ code that uses the ternary operator to Rust?

How can I port this C++ code to Rust: auto sgnR = (R >= 0.) ? 1. : -1.; I have seen some ... keyword, but I don't understand how it works. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - Powershell if -lt problem; returns true if the condition is false

I have a problem with small script in Powershell. Here is my script: $number = Read-Host "Enter a ... conditional still evaluates to true. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - What is wrong with my excel formula syntax?

I have made several formula to dynamically create a SQL query but to make it perfect, I want to add a condition : ... ... Thanks for your help ! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - javascript switch() or if()

which would be better if i do this: if(message == 'redirect') { is_valid.accepted = true; } else if( ... is_valid.accepted = true; break; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - pandas replace values condition based on another column

I have a dataframe that looks like this: col1 col2 Yes 23123 No 23423423 Yes 34234 No 13213 I want to replace ... = df['col1'].apply(map_value) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - ternary operator in matlab

is there a way of typing for if like: var = (cond) ? true : false; or do we have to use this format? if (cond) true else false end See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - Use Java lambda instead of 'if else'

With Java 8, I have this code: if(element.exist()){ // Do something } I want to convert to lambda style, ... lambda, we can avoid this mistake! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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538 views

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if statement - "Wrong" return type when using if vs. ternary opertator in Java

In the following class, the return type of the two methods is inconsistent with the idea that the ternary ... operator in Java - autoboxing See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - Python "if X == Y and Z" syntax

Does this: if key == "name" and item: mean the same as this: if key == "name" and if key == "item ... whether or not item exists as a variable? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - Check for equality in Spacebars?

I am trying to do what I think should be a very simple task, but have been failing to do so in the ... achieve. Am I missing something there? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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754 views

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if statement - how to compare two strings in javascript if condition

I'm having trouble recalling how to compare these two strings in an if statement. What I'm string to do is check ... = "non-github url"; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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735 views

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if statement - I encountered "unary operator expected" in a Bash script

In my Bash script, I have a function to return 0 or 1 (true or false) for the later main function's ... operator expected How can I fix this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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494 views

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if statement - What use does if_/3 have?

The predicate if_/3 seems to be fairly popular among the few main contributors in the Prolog part of Stack ... Prolog could understand easily. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - JSON JQ if without else

I use the following JQ command to filter out the JSON. My requirement is to filter out the JSON message if the ... " " in the result file. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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522 views

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if statement - jQuery determine if ul has class OR another one

what is the right way to determine if an object has one class OR another one? The following is appearantly wrong.. if ... ', 'block'); } Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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567 views

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if statement - how does IF affect complexity?

Let's say we have an array of 1.000.000 elements and we go through all of them to check something simple ... ) the same amount of complexity. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - Why "if $(ps aux | grep ...)" always succeeds in Bash?

Why the following if statement succeeds ? if $(ps aux | grep -q "bla bla") ; then echo "found" ; fi See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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649 views

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if statement - How to check if Fortran array contains value?

I've seen this asked for other languages, but having just found out how nicely Fortran can handle arrays, I ... seem like the right choice. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - 'else' is not recognized as an internal or external command, operable program or batch file

I try to use with "else" command but I get the foloowing error: 'else' is not recognized as an internal or ... =/a e ) What the problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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if statement - Python if not == vs if !=

What is the difference between these two lines of code: if not x == 'val': and if x != 'val': Is one more ... use if x == 'val': pass else: See Question&Answers more detail:os...

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

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724 views

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if statement - Else Syntax Error Python

if len(user_hash) > 0: with open(log_file, "w") as log_f: for name in user_hash: log_f.write("Name:%s Email: ... gives error. What do I do? See Question&Answers more detail:os...

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

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697 views

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if statement - How to write if-else in assembly?

How do you write the if else statement below in assembly languange? C Code: If ( input < WaterLevel) { MC = 1; } ... [MC], 1 MOV word[MC], 2 See Question&Answers more detail:os...

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

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596 views

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if statement - Javascript if time is between 7pm and 7am do this?

I want to have a javascript file which checks if current time is between 7pm and 7am. If so it should change the ... 's why I need your help! See Question&Answers more detail:os...

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

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618 views

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if statement - Can I define a variable in a PHP if condition?

For example, can I do: if ($my_array = wp_get_category($id)) { echo "asdf"; } else { echo "1234"; } If ... want to go into the else statement. See Question&Answers more detail:os...

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

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746 views

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if statement - Python: check if an object is a sequence

In python is there an easy way to tell if something is not a sequence? I tried to just do: if x is not sequence but python did not like that See Question&Answers more detail:os...

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

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