Intention actions
As soon as the IDE finds a way to improve your code, it displays a yellow bulb icon 
in the editor next to the current line. By clicking this icon, you can view intention actions available in the current context. Intention actions cover a wide range of situations from warnings to optimization suggestions.
A yellow bulb icon also indicates that WebStorm has detected a problem and prompts you with a quick-fix for it. For severe problems, WebStorm displays a red bulb with an exclamation mark 
instead of a light yellow one . WebStorm suggests the first available quick-fix in an inspection tooltip, which appears every time you hover over a warning or an error.
Apply intention actions
Click the bulb icon or press Alt+Enter to open the list of suggestions and select an action from the list.
Press Ctrl+Q or select from the main menu to open an intention preview.
If an intention is complex, and the preview cannot be generated, you will see the intention description. Hover the mouse pointer over available intentions on the suggestion list to preview them.
Once activated, the preview will appear every time you open the list of available intention actions. To close the preview, press Ctrl+Q again while the list of intentions is open.
Press Enter or click an intention on the list to apply it. For example, you can use an intention action to merge the declaration of a variable with its initialization:
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Apply quick-fixes
Hover over an error or a warning in the code. WebStorm displays an inspection tooltip and shows the first available fix right next to the description of the problem.
To apply the suggested fix, press Alt+Shift+Enter.
To see the usual popup with all the available quick fixes and intention actions, press Alt+Enter.
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View all intention actions
Press Ctrl+Alt+S to open the IDE settings and select Editor | Intentions.
For each intention action, you can see a description and an example. To disable an intention, clear the checkbox next to it.
Apply the changes and close the dialog.
Disable intention actions on the fly
Click the light bulb icon (or press Alt+Enter) to open the list of suggestions.
Select the action you want to disable, click the right arrow next to it, and then click Disable <intention action name>.
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