'Submit' button with built-in progress indicator

Simple implementation of Ladda (1, 2) in less than 90 lines of code with no dependencies.

It can use Bootstrap 3 button styles or you can style it yourself.


disabled - Boolean, works the same as regular "disabled" attribute.
progress - Number, if (> 0 && < 100) the button will disable itself, and display progress bar and the spinning circle.
autoProgress - Number, if > 0 the button will display fake automatic progress (similar to vue-top-progress-bar).
autoProgress determines the time in milliseconds to reach 100%. You should set it to your typical response time. Default is 3000 ms.

The progress bar will never reach 100%, however, and will be stuck at 95% until you set it manually to either 0 or 100, in which case the button will return to its normal state.

If autoProgress is set to 0, you should provide the progress values yourself via the progress prop.

If you don't want the progress bar to be displayed, set the progress to 0.1 and don't update it until finished (then set it to 0).

The automatic progression is logarithmic; this means the progress bar will move slower and slower as it goes higher.

Live Demo