"In this section, we'll learn how to get data from APIs. APIs are tools that computers use to communicate with one another.",
"We'll also learn how to update HTML with the data we get from these APIs using a technology called Ajax.",
"First, let's review what the <code>$(document).ready()</code> function does. This function makes it so all code inside of it only runs once our page loads.",
"Let's make our \"Get Message\" button change the text of the element with the class <code>message</code>.",
"Before we can do this, we need to implement a Click event inside of our <code>$(document).ready()</code> function by adding this code:",
"assert(editor.match(/\\$\\s*?\\(\\s*?(?:'|\")\\#getMessage(?:'|\")\\s*?\\)\\s*?\\.on\\s*?\\(\\s*?(?:'|\")click(?:'|\")\\s*?\\,\\s*?function\\s*?\\(\\s*?\\)\\s*?\\{/gi), 'Bind the click event to the button with the ID of <code>getMessage</code>')",
"assert(editor.match(/\\n*?\\s*?\\}\\n*?\\s*?\\);/gi) && editor.match(/\\n*?\\s*?\\}\\);/gi).length >= 2, 'Be sure to close your functions with <code>});</code>')"
"Let's make it so that when a user clicks the \"Get Message\" button, we change the text of the element with the class <code>message</code> to say \"Here is the message\".",
"assert(editor.match(/\\$\\s*?\\(\\s*?(?:'|\")\\.message(?:'|\")\\s*?\\)\\s*?\\.html\\s*?\\(\\s*?(?:'|\")Here\\sis\\sthe\\smessage(?:'|\")\\s*?\\);/gi), 'Clicking the \"Get Message\" button should give the element with the class <code>message</code> the text \"Here is the message\".')"
"You've already been using JSON whenever you create a JavaScript objects. JSON is just a bunch of object properties and their current values, sandwiched between a <code>{</code> and a <code>}</code>.",
"These properties and their values are often referred to as \"key-value pairs\".",
"Let's get the JSON from Free Code Camp's Cat Photo API.",
"Here's the code you can put in your Click event to do this:",
"assert(editor.match(/\\$\\s*?\\(\\s*?(\\\"|\\')\\#getMessage(\\\"|\\')\\s*?\\)\\s*?\\.\\s*?on\\s*?\\(\\s*?(\\\"|\\')click(\\\"|\\')\\s*?\\,\\s*?function\\s*?\\(\\s*?\\)\\s*?\\{/gi), 'You should have a click handler on the getMessage button to trigger the AJAX request.')",
"assert(editor.match(/\\s*?\\}\\s*?\\)\\s*?\\;/gi), 'You should have at least on closing set of brackets and parenthesis.')",
"assert(editor.match(/\\s*?\\}\\s*?\\)\\s*?\\;/gi) && editor.match(/\\,\\s*?function\\s*?\\(\\s*?\\w*?\\s*?\\)\\s*?\\{/gi) && editor.match(/\\s*?\\}\\s*?\\)\\s*?\\;/gi).length === editor.match(/\\s*?function\\s*?\\(\\s*?\\w*?\\s*?\\)\\s*?\\{/gi).length, 'Each callback function should have a closing set of brackets and parenthesis.')",
"assert(editor.match(/\\$\\s*?\\.\\s*?getJSON\\s*?\\(\\s*?\"\\\/json\\\/cats\\.json\\?callback\\=\"\\s*?\\,\\s*?function\\s*?\\(\\s*?json\\s*?\\)\\s*?\\{/gi), 'You should be making use of the getJSON method given in the description to load data from the json file.')",
"assert(editor.match(/\\$\\s*?\\(\\s*?\\\"\\.message\\\"\\s*?\\)\\s*?\\.\\s*?html\\s*?\\(\\s*?JSON\\s*?\\.\\s*?stringify\\s*?\\(\\s*?json\\s*?\\)\\s*?\\)/gi), 'Don\\'t forget to make the <code>.html</code> change the contents of the message box so that it contains the result of the getJSON.')"
"Now that we are getting data from a JSON API, let's display it in HTML.",
"We can use the <code>.map()</code> method to loop through our data and modify HTML elements.",
"First we'll declare an HTML variable. Then we'll loop through our JSON, adding more HTML to that variable. When the loop is finished, we'll render it.",
"In the JSON that we receive from Free Code Camp's Cat Photo API, each object has an attribute called \"imageLink\".",
"When we're looping through these objects, let's check whether an object attribute (key) is <code>imageLink</code>. If it is, instead of outputing the image link, let's render the image.",
"If we don't want to render every cat photo we get from our Free Code Camp's Cat Photo JSON API, we can pre-filter the json before we loop through it.",
"Let's filter out the cat who's \"id\" key has a value of 1.",
"assert(editor.match(/navigator\\.geolocation\\.getCurrentPosition/gi), 'You should make use of the <code>navigator.geolocation</code> to access the users current location.')"
