Initial commit

2019-11-15 12:59:38 +01:00
parent 40a414d210
commit b880c3ccde
6814 changed files with 379441 additions and 0 deletions
@@ -0,0 +1,51 @@
+<HTML>
+<HEAD>
+<TITLE>Throwing a Custom Error Object Exception - Happy Codings :-) JavaScript Code Examples</TITLE>
+<SCRIPT LANGUAGE="JavaScript">
+var letters = new Array("A","B","C","D","E")
+function getErrorObj(msg) {
+    var err = new Error(msg)
+    // take care of IE5/5.5
+    if (!err.message) {
+        err.message = msg
+    }
+    err.name = "MY_ERROR"
+    return err
+}
+function getLetter(fld) {
+    try {
+    var inp = parseInt(fld.value, 10)
+        if (isNaN(inp)) {
+            throw getErrorObj("Entry was not a number.")
+        }
+        if (inp < 1 || inp > 5) {
+            throw getErrorObj("Enter only 1 through 5.")
+        }
+        fld.form.output.value = letters[inp]
+    }
+    catch (e)  {
+        switch (e.name) {
+            case "MY_ERROR" :
+                alert(e.message)
+                fld.form.output.value = ""
+                fld.focus()
+                fld.select()
+                break
+            default :
+                alert("Reload the page and try again.")
+        }
+    }
+}
+</SCRIPT>
+</HEAD>
+<BODY>
+<H1>Throwing a Custom Error Object Exception</H1>
+<HR>
+<FORM>
+Enter a number from 1 to 5: 
+<INPUT TYPE="text" NAME="input" SIZE=5>
+<INPUT TYPE="button" VALUE="Get Letter" onClick=getLetter(this.form.input)>
+Matching Letter is:<INPUT TYPE="text" NAME="output" SIZE=5>
+</FORM>
+</BODY>
+</HTML>