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The input is not a valid Base-64 string as it contains a non-base 64 character

...r console application after converting it to Byte array and then to Base64 string. This part works, but when the same stream is received at the application, it gets manipulated and is no longer a valid Base64 string. Some junk characters are getting introduced into the stream. ...
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Single quotes vs. double quotes in Python [closed]

... I like to use double quotes around strings that are used for interpolation or that are natural language messages, and single quotes for small symbol-like strings, but will break the rules if the strings contain quotes, or if I forget. I use triple double quote...
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Random String Generator Returning Same String [duplicate]

I've developed a random string generator but it's not behaving quite as I'm hoping. My goal is to be able to run this twice and generate two distinct four character random strings. However, it just generates one four character random string twice. ...
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java: ArrayList - how can i check if an index exists?

I'm using ArrayList<String> and I add data at specific indices, how can I check if a specific index exists? 11 Ans...
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How to check whether a string contains a substring in Ruby

I have a string variable with content: 9 Answers 9 ...
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How do I do a multi-line string in node.js?

With the rise of node.js, multi-line strings are becoming more necessary in JavaScript. 9 Answers ...
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What is the difference between JSON and Object Literal Notation?

...ls. JSON has the following syntactical constraints: Object keys must be strings (i.e. a character sequence enclosed in double quotes "). The values can be either: a string a number an (JSON) object an array true false null Duplicate keys ({"foo":"bar","foo":"baz"}) produce undefined, implemen...
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Stripping everything but alphanumeric chars from a string in Python

What is the best way to strip all non alphanumeric characters from a string, using Python? 11 Answers ...
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How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?

... Use an overload of rfind which has the pos parameter: std::string s = "tititoto"; if (s.rfind("titi", 0) == 0) { // s starts with prefix } Who needs anything else? Pure STL! Many have misread this to mean "search backwards through the whole string looking for the prefix". That w...
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Remove new lines from string and replace with one empty space

Want to remove all new lines from string. 19 Answers 19 ...