javascript - 如何将参数传递给函数(How to pass parameters to a function)

Question

This is my addColumn function, to which I want to pass these two parameters, $result and $filter_id .(这是我的addColumn函数，我要将这两个参数$result和$filter_id传递给该函数。)

->addColumn('check_field', function ($result,$filter_fld) { $check_fields = $filter_fld; $check_field_arr = $this->createAarrayChackList($check_fields); $status = in_array($result->id, $check_field_arr)==true ? 'checked' :''; return '<input type="checkbox" class="chk itemName form-check-input" id="seasel" value="$data->id" name="origin_port" onclick="get_value_to_hidden_field();" '.$status.'>'; }) How can i pass the two parameters?(如何传递两个参数？)   ask by vivek kalanka translate from so

Answer 1

You are passing parameters to a function that be named closure .(您正在将参数传递给名为closure的函数。)

A closure is a function that is evaluated in its own environment, which has one or more bound variables that can be accessed when the function is called.(闭包是在其自己的环境中求值的函数，该函数具有一个或多个绑定变量，调用该函数时可以访问它们。) The use() keyword let's you import variables from outside the function environment , inside the function.(use（）关键字使您可以从函数环境外部，函数内部导入变量 。) ->addColumn('check_field', function () use ($result, $filter_fld) { ... })