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JavaScript Strings in Java Build PDF-417 2d barcode in Java JavaScript Strings .net vs 2010 barcodes

CHAPTER 8 JavaScript Strings use none none integration todevelop none with nonec# pdf-417 generating Manipulative String Object Methods Microsoft Windows Official Website The concat() Method of String Object JavaScript Syntax:. stringName1.concat(st ringName2); ("stringLiteral1").concat("stringLiteral2");.

Parameters Defined:. The concat() Method r eturns a new String Object that combines the text of stringName1 and stringName2. Any changes to one of the String Objects will have no effect on the other String Object. The only reason there are two versions of the syntax is to remind you that if you use actual text, signified by stringLiteral1 and stringLiteral2, instead of a text Variable, then you need to enclose it in quotes or double quotes.

Forgetting to quote your text is one of the most frequent minor "space-outs" in coding. For instance, if you have the String "Carpe Diem means: " and another String "Seize the Day.", then to concatenate those two Strings you would code it like this: ("Carpe Diem means: ").

concat("Seize the Day.") which would produce the following String: Carpe Diem means: Seize the Day. If you have the following two Strings assigned to String Variables: var str1 = "Tales from " var str2 = "Topographic Oceans" Then, to join those two Strings with the concat() Method, code it like this: str1.

concat(str2) which would return the following String: Tales from Topographic Oceans. Part II J a v a S c r i p t 1 . 2 Example 8-0 creates a Function named concatIt() and defines two String Variables, myString1 and myString2, by assigning each one a String Literal. Next, it uses the concat() Method to join these two Strings and assigns the result to the value Property of the text box named text1. Finally the concatIt() Function is assigned to the onClick Event Handler of the button named B1, which implements the concatenation and renders it to screen.

. Example 8-0:. Sample900.html <!DOCTYPE HTML PUB none none LIC -//W3C//DTD HTML 3.2//EN> <HTML> <HEAD> <TITLE> Sample 900 Example 8-0 concat Method </TITLE> <SCRIPT LANGUAGE="JavaScript1.2"> <!--BEGIN HIDING function concatIt() { var myString1 = "Have a "; var myString2 = "great day.

"; document.form1.text1.

value = ""; document.form1.text1.

value = myString1.concat(myString2); } //END HIDING--> </SCRIPT> </HEAD> <BODY> <FORM NAME="form1"> <INPUT TYPE="button" NAME="B1" VALUE="concat the Strings" onClick="concatIt();"> <INPUT TYPE="text" NAME="text1" SIZE="30" VALUE="Greetings"> </FORM> </BODY> </HTML>. Example 8-1 demonstra tes the concat() Method inside of the Function named concatIt() by first creating three String Variables named myString1, myString2, and myString3. The first two String Variables each get assigned a value Property from one of the text Elements named text1 and text2. Next, myString3 is assigned the String resulting from concatenating myString1 with myString2, which is then assigned to the value Property of text3.

Finally, the concatIt() Function is assigned to the onClick Event Handler of the button B1 so that when it is clicked, the text is collected from the first two text boxes and joined together and displayed in the third text box. The focus() Method just puts the cursor in the first text box to start the next input session. The reason for the null Strings is to prevent a String buildup.

This way you start each joining with a blank String.. CHAPTER 8 JavaScript Strings Example 8-1: Sample901.html <!DOCTYPE HTML PUB none for none LIC -//W3C//DTD HTML 3.2//EN> <HTML> <HEAD> <TITLE> Sample 901 Example 8-1 concat Method</TITLE> <SCRIPT LANGUAGE="JavaScript1.2"> <!--BEGIN HIDING function concatIt() { var myString1 = document.

form1.text1.value; var myString2 = document.

form1.text2.value; var myString3 = myString1.

concat(myString2); document.form1.text1.

value = ""; document.form1.text2.

value = ""; document.form1.text3.

value = myString3; document.form1.text1.

focus(); } //END HIDING--> </SCRIPT> </HEAD> <BODY> <FORM NAME="form1"> First Text String...

<INPUT TYPE="text" NAME="text1" SIZE="30" VALUE="Hey "> Second Text String...

<INPUT TYPE="text" NAME="text2" SIZE="30" VALUE="Now">. <BR> <BR> <INPUT TYPE="butto n" NAME="B1" VALUE="concat the Strings" onClick="concatIt();"> <BR> <INPUT TYPE="text" NAME="text3" SIZE="30" VALUE=""> </FORM> </BODY> </HTML>. Example 8-2 very simp none for none ly demonstrates that a change made to one String does not change the other String that was joined to it, nor does it change the resulting concatenated String.. Example 8-2:. Part II J a v a S c r i p t 1 . 2 Sample902.html <!DOCTYPE HTML PUB none for none LIC -//W3C//DTD HTML 3.2//EN> <HTML> <HEAD> <TITLE> Sample 902 Example 8-2 concat Method.
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