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VisualizaçõesHow do I make a button that, when clicked, displays data in node.js?
So I've created a button, along with a table that shows data from my database. However, I want that data to appear only when the button is clicked. So when the button is clicked, I want a random row from a specific table I have in my database appear. 
`<button id="breakfast2">Breakfast</button>
<table id="mealTableContainer2">
<thead>
<tr>
<th id="mealname">Meal Name</th>
<th id="mealcalories">Calories</th>
<th id="mealtype">Type of Meal</th>
</tr>
</thead>
<tbody id="mealContainer2"></tbody>
</table>`
The only Javascript I currently have is for getting my database into that table, but I really only want it to appear when I click the breakfast button. I just can't figure out how; if someone could explain it to me very simply, I'd be appreciate it a ton!
console.log('Data2 received')
$.ajax({
url: 'http://localhost:5000' + "/read-recordsrandom",
type: 'get',
success: function(response) {
var data2 = JSON.parse(response);
if(data2.msg === "SUCCESS"){
console.log(data2.meal)
createMealTable2(data2.meal);
} else {
console.log(data2.msg);
}
},
error: function(err){
alert(err);
}
});
}
function createMealTable2(data2) {
var tableHTML2 = " ";
console.log("Test");
for(var i=0; i < data2.length; i++){
tableHTML2 += "<tr>";
tableHTML2 += "<td>" + data2[i].mealname + "</td>";
tableHTML2 += "<td>" + data2[i].mealcalories + "</td>"
tableHTML2 += "<td>" + data2[i].mealtype + "</td>";
tableHTML2 += "</tr>";
}
$('#mealContainer2').html(tableHTML2);
}
3 Respostas
Responde à pergunta0
Hide it initially then display it
document.getElementById("breakfast2")
.addEventListener('click', function(event) {
document.getElementById("mealTableContainer2").classList.remove('hidden');
});.hidden {
display: none;
}<button id="breakfast2">Breakfast</button>
<table id="mealTableContainer2" class="hidden">
<thead>
<tr>
<th id="mealname">Meal Name</th>
<th id="mealcalories">Calories</th>
<th id="mealtype">Type of Meal</th>
</tr>
</thead>
<tbody id="mealContainer2"></tbody>
</table>0
If I'm right, by default, the table is supposed to be hide. So you can first of all, hide the table with css
Change this line to hide the table
<table id="mealTableContainer2" style="display: none;">
After that, you will need to add event listener on the button "breakfast" in javascript to display the table on click
document.getElementById("breakfast2").addEventListener("click", function() {
document.getElementById("mealTableContainer2").style.display = "block";
});
0
Here is how you can ajax on click
NOTE: the `` are backticks used in template literal delimites and MUST be backticks
$(function() {
const createMealTable2 = data => {
$('#mealContainer2')
.html(data.map(meal => `<tr>
<td>${meal.mealname}</td>
<td>${meal.mealcalories}</td>
<td>${meal.mealtype}</td>
</tr>`)
.join("")
)
};
$("#breakfast2").on("click", function() {
$.ajax({
url: 'http://localhost:5000' + "/read-recordsrandom",
type: 'get',
success: function(response) {
var data2 = JSON.parse(response);
if (data2.msg === "SUCCESS") {
createMealTable2(data2.meal);
} else {
console.log(data2.msg);
}
},
error: function(err) {
alert(err);
}
});
})
})
<button type="button" id="breakfast2">Breakfast</button>
<table id="mealTableContainer2">
<thead>
<tr>
<th id="mealname">Meal Name</th>
<th id="mealcalories">Calories</th>
<th id="mealtype">Type of Meal</th>
</tr>
</thead>
<tbody id="mealContainer2"></tbody>
</table>