I have a map() and I want to pass two parameters:
- a string
- a function
Example code:
{
values.map((workflow, totalWorkflow()) => {
return <WorkflowSingle key={ workflow } workflow={ workflow } />
})
}Why do I get this error: SyntaxError: Assigning to rvalue
4 Answers
You get rvalue error, when you use = instead of == in a condition checking block.
If your map function is the Array.prototype.map function, you passed wrong parameters to the function, map accepts callback and second optional parameter, like this:
arr.map(callback[, thisArg])
For your case:
values.map(function(x) {
return <WorkflowSingle key = { x.workflow } workflow = { x.workflow } />
});
For those who came here getting this eslint error in a new project with completely valid code - you need to provide the config to eslint, e.g.:
{
"parserOptions": {
"ecmaVersion": 2017
},
"env": {
"es6": true
}
}
Look at your comparison operator. They are in the wrong direction (=>). Put the equal to sign always at the right and your less or greater than always at the left of your assignment operator(>=)
