Copyright 2016 Fred McClurg All Rights Reserved 2 String Examples What is a string A series of characters between double or single quotation marks Examples This is a string double quotes ID: 633110
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Slide1
Strings
Introduction to JavaScript
© Copyright
2016,
Fred McClurg All Rights ReservedSlide2
2String ExamplesWhat is a string?A series of characters between double or single quotation marks.Examples:"This is a string"; // double quotes'Also a string'; // single quotes"12"; // string not a number'Not a string"; // mismatched (error!)"Also not string'; // mismatched (error!)strings.htmlSlide3
3Quotes within QuotesWhat is a string?A string containing double quotes can be quoted using single quotes. A string containing single quotes can be quoted using double quotes.Examples:// double within single quotes'single "quoted" string';// single within double quotes"double 'quoted' string";quotesInQuotes.htmlSlide4
4Escaping QuotesWhat is an escaped quote?Single and double quotes (and other special characters) can be escaped using the backslash “\” character.Examples:// double quotes escaped"Today's word is \"perspicacious\"";// single quote escaped'Today\'s word is "perspicacious"';escapingQuotes.htmlSlide5
5Concatenating StringsWhat is string concatenation?The plus “+” symbol is used to join strings together.Examples:// long string concatenatedvar conCat = "God whispers to us " + "in our pleasures ... " + "but shouts in our " + "pains. -- C.S. Lewis";console.log( conCat );
concatStr.htmlSlide6
6String Type ConversionWhat is string type conversion?The plus “+” symbol is also used to convert numbers to the equivalent string.Examples:var count = 0; // integer// number is converted to stringvar message = "Yes we have " + count + " bananas";console.log( message );
strTypeConvert.htmlSlide7
7Line ContinuationWhat is line continuation?A long line can span multiple lines via the backslash “\” character as the last character on the line.Examples:// spanning lines via continuationvar strCont = "The remarkable thing is, \we have a choice everyday regarding the \attitude we will embrace for that day. \-- Chuck Swindoll";console.log( strCont
);
lineCont.html