Updated index.md with grammar errors (#28809)
Updated index.md reviewing grammar errors and general syntax errors.
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Randell Dawson
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@ -33,9 +33,8 @@ int cucumber; // global variable "cucumber"
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## Using goto, continue, etc.
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## Using goto, continue, etc.
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This is a usual discussion among programmers. Just like global variables, these types of statements are usually considered bad practice.
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This is a usual discussion among programmers, just like global variables, these types of statements are usually considered bad practice.
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They are considered bad because they lead to ["spaghetti code"](https://en.wikipedia.org/wiki/Spaghetti_code). When we program, we want a linear flow, when using those statements the flow is modified and leads to a "twisted and tangled" flow.
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They are considered bad because they lead to ["spaghetti code"](https://en.wikipedia.org/wiki/Spaghetti_code). When we program we want a linear flow, when using those statements the flow is modified and lead to a "twisted and tangled" flow.
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Goto was used in the past when while, for, if functions, however, with the introduction of those structured programming was created.
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Goto was used in the past when while, for, if functions, however, with the introduction of those structured programming was created.
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In general avoid using goto unless you are sure it will make your code cleaner and easier to read. An example might be using it in nested loops.
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In general avoid using goto unless you are sure it will make your code cleaner and easier to read. An example might be using it in nested loops.
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@ -74,8 +73,7 @@ for (int i = 1; i <= 5; i++)
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## Declare constants and types at the top
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## Declare constants and types at the top
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They are usually declared after libraries, this makes them be together and easier to read.
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They are usually declared after libraries, this makes them be together and easier to read.
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For local variables it happens the same, declare them at the top (Other people prefer declaring them as later as possible in order to save memory. See: [cplusplus.com](http://www.cplusplus.com/forum/general/33612/)
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For local variables it happens the same, declare them at the top (Other people prefer it declaring them as later as possible in order to save memory see: [cplusplus.com](http://www.cplusplus.com/forum/general/33612/)
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## Use only one return function at the end
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## Use only one return function at the end
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@ -107,3 +105,9 @@ for (int i = 1; i <= 5; i++)
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* #### Use proper indentations, so that it is easy to read and debug the code, for you, as well as for others.
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* #### Use proper indentations, so that it is easy to read and debug the code, for you, as well as for others.
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* #### Write const in caps, datatypes starting with T and variables in lower case.
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* #### Write const in caps, datatypes starting with T and variables in lower case.
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```cpp
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const int MAX= 100; //Constant
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typedef int TVector[MAX]; //Data type
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TVector vector; //Vector
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```
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