Knowledge Base
  • Introduction
  • Events and Actions
  • Action Panel
  • sending email
  • calling a SQL action from a client side js action
  • Accessing to translations form a server
  • Executing SQL statements from within an action
  • How to invoke a generic SQL statement defined through a SQL action
  • How to show a message dialog
  • checking for "undefined" values
  • How to add spaces to the right of a text
  • How to create a docx report and show it on the web browser Enterprise Edition only
  • How to get or set a value from the graphics control
  • How to invoke a generic SQL query defined through a business component
  • How to remove spaces to the left and right of a text
  • How to support multiple themes in a single application, accoding to a rule
  • How to set content to a Google Map linked to a grid or form
  • How to replace all occurences of a pattern from a text
  • Utility methods
  • Link auto login
  • Creation of a link for the first access of a new user without give the user a password and forcing
  • Forgot password
  • setting up default values from values coming from a filter panel
  • identifing the modified record after the alteration
  • enabling/disabling checkboxes in a grid
  • Filtering a Lookup
  • formatting a column
  • using checkboxes to select rows in grid
  • showing a summary row in grid
  • Disabling a toolbar button
  • Configuring grid exports
  • Adding filter conditions to a grid
  • Filtering the grid content from a tree
  • Filtering the tree content, starting from a filter panel linked to a grid
  • collapsing a panel
  • validating a lookup
  • accessing the authorizations set for a specific grid
  • How to design a web service
  • How to remotelly invoke an action or business component or perform a write operation through a Restf
  • how to feed a grid from a JS business component
  • converting a JS object to a JSON string
  • executing a query
  • passing parameters to a server side JS action
  • return value
  • scheduling and frequency
  • finding the right filter panel
  • checking out if a component has been defined
  • Deploying an application
  • Enquiring a table belonging to the Platform repository
  • Adding a where clause to a business component linked to grid
  • Integrating Mailchimp lists
  • Formatting a number as a currency value to use it inside an email template
  • sending email from a template
  • How to send an email
  • Error 'smtpHost' is empty
  • Linking two windows
  • How to open manually a window from another window
  • How to open manually a popup window
  • How to hide a panel in a window dinamically
  • How to manage folder panels
  • How to manage card panels
  • Predefined variables supported by Platform
  • Accessing the application parameters
  • Application Log
  • How to design a web service
  • How to import java classes in server
  • How to import java classes in server
  • How to dynamically set a value on a combo
  • 4WS.Platform
  • How to listen to events in a mobile HTML panel
  • Issues with HTTPS requests
  • How to manage row totals in grid
  • How to send to the UI a notification to execute code automatically
  • How to filter a chart by date interval
  • How to filter a grid by date interval
  • How to read a text or csv file and save data on the database
  • How to write text or csv files
  • Reading an xls file stored in the specified path
  • How to create a report with Jasper Report
  • How to customize the alert message content
  • Setting up a cluster
  • Uploading and downloading files
  • How to listen to user definition changes
  • How to auto-show a window from login
  • How to manage encrypted fields
  • How to change CSS settings for a grid row
  • Customizing a Tree Panel
  • How to execute complex queries on Google Datastore
  • Theme customization
  • Retrieve and send the log of a mobile app
  • Import Roles and Users
  • How to synchronize multiple Form panels in the same window
  • Anchor buttons
  • Properties of subpanels
  • Bulk import
  • How to display the data not found message in a grid
  • How to setup an LDAP based authentication
  • How to synchronize data from Datastore to BigQuery
  • How to synchronize data from Datastore to Google Spanner
  • How to synchronize data from Datastore to CloudSQL
  • Scrollable form list
  • How to setup SAML authentication
  • How to export data from BigQuery in streaming
  • Update Google Spreadsheet
  • How to setup OAuth2 authentication
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How to remove spaces to the left and right of a text

4WS.Platform provides a method to remove spaces to the left and right of a string:

trim(textToTrim);

this function will return the trimmed text;

Example

trim(" abc ");

will return “abc” (without spaces on the left and right).

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Last updated 5 years ago

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