| Intellectual Property |
| Intellisense - Excel API |
| Intellisense - External Libraries |
| Intellisense - JavaScript |
| Intellisense - JSDoc |
| Intellisense - Office Add-ins |
| Intellisense - Office.d.ts |
| Intellisense - Office.js |
| Intellisense - Outlook API |
| Intellisense - PowerPoint API |
| Intellisense - Reference Directive |
| Intellisense - Troubleshooting |
| Intellisense - TypeScript |
| Intellisense - Visual Studio |
| Intellisense - Word API |
| Interaction - alert |
| Interaction - confirm |
| Interaction - prompt |
| Interfaces |
| Interfaces - React |
| Interfaces - TypeScript |
| Internet Explorer - Start Action |
| Interpolation - Template Literals |
| Interview Questions |
| InvalidObjectPath - Error |
| InvalidObjectPath - Tracking Objects |
| InvalidRequestContext - Error |
| isFinite - Function |
| isNan |
| isNaN - Function |
| isNullObject Property |
| isSetSupported - Requirements |
| ISV (Independent Software Vendor) |
| ISV Seller Dashboard |
| ItemChanged Event |
| ItemHasAttachment - Outlook Rule |
| ItemHasKnownEntity - Outlook Rule |
| ItemHasRegularExpressionMatch - Outlook Rule |
| ItemIs - Outlook Rule |
| ItemNotificationMessageType - MailboxEnums |
| ItemSend Event - Outlook |
| ItemSend Event Type |
| ItemType - Enumeration |
| Iterables |
| Iteration - Arrays |
| Iteration - Maps |
| Iteration - Objects |
| Iteration - Sets |